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Sphere Research Corporation
3394 Sunnyside Rd.
West Kelowna, BC, Canada V1Z 2V4
Phone: +1 (250) 769-1834
FAX:+1 (250) 769-4106

A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES!

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RESTORED & OVERHAULED
USED FULL SIZE SLIDE RULES

K+R Decilon

4088-3

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USED FULL SIZE SLIDE RULES

Many rules just overhauled and restored,
including K+E Deci-lons!



go right to the catalog! Skip the INTRO, Go RIGHT to the CATALOG!


* To make your life easier, and help you find exactly what you want, we have broken the on-line slide rule catalogs into smaller sections. Just CLICK on the icon of the rule type you are looking for at the left, to see the matching catalog. Large graphical catalogs are a bit SLOW, please give them time to load.

You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST, or FAX to (250) 769-4106. OR, Email your order to Susan CLICKHERE.

Shipping*SHIPPING: Preferred and Alternate Methods as of June 4, 2013, CLICK for FULL DETAILS ON OUR FAQ Page. Rates are now changing rapidy, often with little notice to us, so all the data has been transferred to the FAQ page for speedy updating.

* E-Mail Susan if you want a quote for shipping to other destinations, or for something heavy. Sorry, we can't safely send most individual small parts in a regular letter envelope, they get destroyed by the automated handling equipment. Sometimes we can ship very rugged parts in a small padded envelope by letter post. Ask Susan.

*There is a packing charge for large or heavy equipment, see the FAQ for details.

*If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. We keep your active information for ONE YEAR for your convenience.

*If this is the first time you have dealt with us, you can phone +1 (250) 769-1834 or FAX +1 (250) 769-4106 to supply the billing info, or send it by the email link, as you prefer. We accept VISA/MC, international money order, Paypal (to Susan@Okanagan.net), and bank wire transfer. Please note that there are transaction fees with Paypal and wire transfer payments, the wire transfer fee is frankly horrifying.

We accept VISA/MC or international money order

The CATALOG will appear below shortly!

CATALOG: JUST SCROLL DOWN TO SEE EVERYTHING !down
Go to the K+E Rules GO!GO TO THE K+E RULES
Go to the PICKETT Rules GO!GO TO THE PICKETT RULES
Go to the sun-hemmi rulesPost
Go to the Hughes Ownes rules Go to the Geotec RulesGo to the Teledyne Rules
GO!Go to the POST, Teledyne, Hughes-Owens,
Geotec and Sun/Hemmi RULES
CLICK to see the Faber-Castell RulesCLICK to see the ARISTO Rules
DIETZGEN Nestler
REISS
GO!Go to the Aristo, Faber-Castell, Nestler,
Dietzgen Reiss and Other RULES

We are often sold out of many popular older rules, so email susan if you want one, we will hold it for you as it
comes out of our overhaul shop. It takes time to find and restore these rules, so please be patient.

Hey! DON'T FORGET to check the NEW IN BOX section for more full sized rules.

POST Geotec Hemmi-Sun Hughes-Owens
SLIDE RULE
INFO / SCALES
QUANTITY
PRICE EA.
Geotec
Geotec 341 3012
Versalog II

Log Log Duplex Rule

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Canada
Japan
POST
CLICK HERE to visit the POST/Geotec Archive
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Just in, won't last long.....
12"/10"Versalog 2 Slide Rule
Geotec Excellent (like new), bamboo, Log Log Duplex rule, metal framed glass cursor. This is the Geotec branded (Canadian Distributor) Hemmi/POST famous Versalog II full-sized duplex rule, the companion to the pocket sized 1461. This has blue and red scale markings with the GREEN COS scale added A scale, and adjustable metal end braces. These sets include the soft leatherette case and rule.

A powerful duplex rule, this has 8 Log Log scales, split high resolution square root scales (R1/R2) plus A scale, folded and trig scales. A very attractive and hard to find rule, this style is always in high demand, but is hard to locate in such good condition. Made by Hemmi in Japan, these are late-production sets in excellent condtion, they were stock for Canadian Forces training classes.

(24 Scales)
Front - L, LL/1, LL/2, LL/3, [ T, SecT/SRT, Cos/S, C, ] D, LL3, LL2, LL1
Back - LL0, K, A, DF, [ CF, CIF, CI, C, ] D, R1, R2, LL0
SORRY, SOLD

Includes:
Rule
Leatherette Case

$195 Ea.

CF Geotec Versalog II
Like this rule?

E-Mail Us!
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MODEL
Rule Details
Graphic
Teledyne
POST
Teledyne-POST
Versalog II
44CA-600

Made in Japan
USA


Just 1 +1 in Factory Leather Case
Includes:
Sphere Case
Rule
10", Engineering Versalog II Slide Rule
near MINT condition rule, with brand new Sphere case. We see VERY FEW Versalog II rules, this one is in excellent condition from glass to metal trim. Laminated bamboo construction, self lubricating design. Wears very well, and slides smoothly under all conditions.
This is the premier slide rule from POST, very highly sought after, especially in this very late Teledyne version, with the added A scale, self-documenting body style and green COS markings.

This is the highest demand rule series after K&E Deci-lons, and the favorite of many collectors and users. Beautiful to look at, silky smooth to use!

The picture is NOT the actual example offered, but looks the same, VERY late production. Sadly, these late rules came with very poor quality padded vinyl cases, which usually broke at the flap, so we wind up having to package these rules with our new Sphere cases.

Click here for more info about Teledyne-Post
Click here for more info about Post
Click here for more info
about Post

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CLICK to see! Want to know more about our
NEW SPHERE CASES?
JUST CLICK HERE!
$245
(24 Scales)
Front: L, LL/1 (e-0.01<-0.1), LL/2 (e-0.1<-1.0), LL/3 (e-1.0<-10), [ T, SRT, Cos/S, C, ] D, LL3 (e+1>10), LL2 (e+0.1>1.0), LL1 (e+.01>.1).
Back: LL/0 (e-.001<-.01), K, A, DF, [ CF, CIF, CI, C, ] D, R1, R2, LL0 (e+.001>.01)
Teledyne POST Versalog II 44CA-600. Like this rule?
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MODEL
Rule Details
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POST
POST
Versalog II
1460

Made in Japan
USA


Just 1
Includes:
Post Case
Rule
10", Engineering Versalog II Slide Rule
near MINT condition rule and late production heavy oxblood vinyl case. We see VERY FEW Versalog II rules, this one is in excellent condition from glass to metal trim, and the original case is exceptionally nice. Laminated bamboo construction, self lubricating design. Wears very well, and slides smoothly under all conditions.
This is the premier slide rule from POST, very highly sought after, especially in this very later version, with the added A scale, self-documenting body style and green COS markings.

This is the highest demand rule series after K&E Deci-lons, and the favorite of many collectors and users. Beautiful to look at, silky smooth to use!

The picture IS the actual example offered.

Click here for more info about Post
Click here for more info
about Post

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$245
(24 Scales)
Front: L, LL/1 (e-0.01<-0.1), LL/2 (e-0.1<-1.0), LL/3 (e-1.0<-10), [ T, SRT, Cos/S, C, ] D, LL3 (e+1>10), LL2 (e+0.1>1.0), LL1 (e+.01>.1).
Back: LL/0 (e-.001<-.01), K, A, DF, [ CF, CIF, CI, C, ] D, R1, R2, LL0 (e+.001>.01)
POST Versalog II, Like this rule?
E-Mail US!
CLICK TO ORDER
MODEL
Rule Details
Graphic
POST
POST
Versalog
1460

Made in Japan
USA
Have 3, Factory, SRC and 2 part plastic cases, your choice.
Includes:
Case
Rule
10", Engineering Versalog Slide Rule
We get only a few sets that are well cared for, these is in excellent condition. The rule and case are both free of marks, and ae clean and bright.

This is a later production POST model of the Versalog with the GREEN COS scale. Laminated bamboo construction, self lubricating design.

Wears very well, and slides smoothly under all conditions.

This is the classic high end slide rule from POST.

This is the highest demand rule series after K&E Deci-lons, and the favorite of many collectors and users. Beautiful to look at, silky smooth to use!

The picture is NOT the actual example offered, but looks very similar. You can download the factory manual in ZIP format HERE from Greg at Ozmanor.

Green COS Versalog with Leather Case
Click here for more info about Post
Click here for more info
about Post

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$195
(23 Scales)
Front: L, LL/1 (e-0.01<-0.1), LL/2 (e-0.1<-1.0), LL/3 (e-1.0<-10), [ T, SRT, Cos/S, C, ] D, LL3 (e+1>10), LL2 (e+0.1>1.0), LL1 (e+.01>.1).
Back: LL/0 (e-.001<-.01), K, DF, [ CF, CIF, CI, C, ] D, R1, R2, LL0 (e+.001>.01)
POST Versalog 1460 with Leather Case. Like this set?
E-Mail US!
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MODEL
Rule Details
Graphic
POST
POST
No. 1447
Student Mannheim

Made in Japan
USA


Have 3

Includes:


Hard Case
Rule
11"/10" Full Size Slide Rule
The best known bamboo Mannheim rule offered by POST, with glass cursor and reversible slide, formulas and conversions on reverse side. White laminate, Sun/Hemmi Japanese bamboo construction, engraved scales in blue and red. This was one of the most common bamboo body student rules, very good quality, and these are in like new condition.

These are the newer sets with the 2-part gray plastic case. We will include a basic operation sheet with the sets.
Click here for more info about Post
Click here for more info
about Post


Includes 1 case and 1 rule

1447, CLICK for bigger PIC!
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1447, CLICK for bigger PIC!
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$49
(9 Scales)
Front - A, [ B, CI, C, ] D, K
Back - Formulas and conversions,
reverse of slide is S, L, T
No. 1447. Like this rule?
E-Mail US!
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MODEL
Rule Details
Graphic

Hemmi/Sun

255D
10" Duplex Electrical Engineering Rule

Japan


SORRY, SOLD

Includes:


2-Part Box Case
Scale Reprint
Rule
10" Log Log Hyperbolic Duplex Slide Rule
Very good condition log log duplex rule, with hyperbolic sine and tangent scales, additional vector/radian engineering scales, and inverted sine/tangent scales. Has folded scales, extended/inverted trig scales, and 3 log log scales. A very nice high end bamboo duplex rule, with a very uncommon scale set. We will include a reprint from the Hemmi Duplex manual that covers these special scales and their use.
CASE OPTION!
This comes with the original 2-part box case, but you can add a NEW SPHERE case to this set for only $25.


CLICK to see! Want to know more about our
NEW SPHERE CASES?
JUST CLICK HERE!
Has Hyperbolic and
Radian/Vector scales!


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$195
(24 Scales)
Front: Sh1, Sh2, Th, A, [ B, TI1, TI2, SI, C, ] D, DI, x, theta
Back: L, K, DF, [ CF, CIF, CI, C, ] D, LL3, LL2, LL1
Hemmi 255D. Like this rule?
*E-Mail US!
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MODEL
Rule Details
Graphic

Hemmi/Sun

259D
10" Duplex Rule

Japan



SORRY, SOLD


Includes:



New SRC Case
Rule
10" Log Log Duplex Slide Rule
Very good condition log log duplex rule, similar to the POST Versalog, but with both A and B scales. Has folded and extended trig scales, and 8 log log scales. A very nice high end bamboo duplex rule, and one of Hemmi's most popular models outside north america. Has NEW cursor glass and runners, and includes a brand NEW Sphere padded case with name window.

CLICK to see! Want to know more about our
NEW SPHERE CASES?
JUST CLICK HERE!
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$195
(24 Scales)
Front: LL/1 (e-0.01<-0.1), LL/2 (e-0.1<-1.0), LL/3 (e-1.0<-10), DF, [ CF, CIF, CI, C, ] D, LL3 (e+1>10), LL2 (e+0.1>1.0), LL1 (e+.01>.1).
Back: L, K, A, [ B, T, S, ST, C, ] D, DI, LL0 (e+.001>.01), LL/0
Hemmi 259D. Like this rule?
*E-Mail US!
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MODEL
Rule Details
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POST
POST
No. 1452W
UNIVERSAL

Made in Japan
USA


Just 1

Includes:



Cardboard Case
Rule
Click here for more info about PostClick here for more info
about Post


11"/10" Full Size Slide Rule
The nicest Hemmi bamboo Mannheim rule offered by POST, with reversible slide, formulas and conversions on reverse side, side rulers in inches and cm. White laminate, Sun/Hemmi Japanese bamboo construction, engraved scales in blue and red. Rule condition is excellent, with only good condition cardboard box cases, all have marks, sticker residue or rubbed paint areas.
This is my favorite POST mannheim rule, with a wider body than normal, much better heft and feel than many other rules, the ideal rule to leave out on your desk for daily use.
Several rules of the same type and condition are available.

CASE OPTION!
This comes with the original 2-part box case, but you can add a NEW SPHERE case to this set for only $25.

CLICK to see! Want to know more about our
NEW SPHERE CASES?
JUST CLICK HERE!
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SCALE CLOSE UP, CLICK for bigger PIC!

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US$115
(9 Scales, 2 Rulers)
Front - inch / A, [ B, CI, C, ] D, K | cm
Back - Formulas and conversions,
reverse of slide is S, L, T
No. 1452W Universal. Like this rule?
E-Mail US!
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K+E K+E K+E K+E K+E

MODEL
Rule Details
Graphic
K&E
K+E
Polyphase
N4053-3S

USA



SORRY, SOLD


Includes:


Box
Manual
Care Booklet
Case
Rule
12"/10" Full Size Mannheim Slide Rule.
K&E's most popular Mannheim rule, this is a mid production set of the famous 4053-3 rule, with the mahogany back, glass cursor, and 2 side rulers. This simplex rule has both inch and cm side rulers (great to leave parked on your desk!), all standard front/rear scales, plus conversion tables on the rear. Enjoyable to use, and lovely to look at.

This rule set comes with an excellent sewn leather case, with K+E logo embossing, a full factory soft-cover manual, care booklet, and a worn original green K+E storage box.

This is a very highly requested classic mahogany body rule.

Pic IS NOT the actual rule offered, actually looks a bit better.
Includes K+E Manual
and BOX!

Classic Mannheim Rule

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Click here for Other Side
US$125
(9 Scales, 2 Rulers)
Front - inch / A, [ B, CI, C, ] D, K
Back - S, L, T plus Conversions.
N4053-3S
Like this rule?

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MODEL
Rule Details
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K+E
4071-3S
Polyphase
Duplex
Decitrig
10"

USA


SORRY, SOLD
Includes:
Leather Case
Rule
10" Polyphase Duplex Decitrig Slide Rule one of K+E's less common duplex rules, with a narrower body than the 4081. Has slanted/red and blue colored directional trig scale markings, and a very good glass cursor.

Very good condition rule (cursor and metalwork in excellent condition), with orange sewn leather case also in VG condition, with pen outline of the flap as noted in the photos.

This is the actual set offered, serial number is 239711.

This rule is not seen very often, especially in this late configuration. The S refers to the sewn (orange) leather case in the set, and does not appear on the rule body itself.


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$165
(15 Scales)
Front - DF, [ CF, CIF, CI, C, ] D, L
Back - K, A [ B, T, ST, S, ] D, DI
4071-3S. Like this rule?
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MODEL
Rule Details
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K+E
4080-3S
Log Log
Duplex

10"

USA



Have 2


Includes:



Leather Case
Rule
Belt Loop

10" Log Log Duplex Decitrig Slide Rule a very late version of this 4080 duplex rule, in my favorite inlaid wood edge format. Excellent condition rule, complete with improved cursor, and very good, orange sewn leather case and belt loop.

Excellent improved cursor and lenses, everything looks very sharp, a great set for somebody looking for this rule, which has trig scales in minutes/seconds, unlike the decimal trig 4081. Pic is NOT the actual set but looks the same, actual serial number is 410233.

The -3S part number means it was supplied with a sewn leather case, the rule is unchanged. I mistakenly thought this was a 4081 initially, as the inlaid style is very uncommon on the earlier 4080. CLICK HERE to see the inlaid edge markings.

Unusual inlaid edge style,
Trig Scales in Minutes/Seconds


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$185
(20 Scales)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, K, A [ B, T, ST, S, ] D, L, LL1
4080-3S Set. Like this rule?
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MODEL
Rule Details
Graphic

K+E
4081-3(S)
Log Log
Duplex
Decitrig
10"

USA


SORRY, SOLD, but more coming, email!
Includes:

Leather Case or Sphere Case
10" Log Log Duplex Decitrig Slide Rule one of K+E's premiere duplex rules, in my favorite inlaid wood edge format. Excellent condition, with excellent orange sewn leather case.

Excellent improved cursor and unbreakable lenses, everything looks very sharp, a great set for somebody looking for this beautiful rule. Pic is NOT the actual set but looks even better,

The -3S part number means it was supplied with a sewn leather case, the rule is unchanged. YOUR CHOICE of either the original sewn case, OR the brand new SPHERE case, same price.

Beautiful set!
CLICK for bigger PIC, 4081-3
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CLICK for bigger PIC, 4081-3
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NEW SPHERE CASES?
JUST CLICK HERE!
$195
(21 Scales !)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A [ B, T, SRT, S, ] D, DI, LL1
4081-3S Set. Like this rule?
E-Mail US!
CLICK TO ORDER
MODEL
Rule Details
Graphic

4083-3
Log Log
Duplex
Vector
10"

USA
SORRY, SOLD
Includes:
New SRC Case
Rule
10" Log Log Duplex Vector Slide Rule one of K+E's more unusual duplex rules, with hyperbolic trig functions. Has Th and Sh1 and Sh2 scales.

Very good condition rule and cursor, with BRAND NEW Sphere Case.

Glass cursor and unusual side engraving of the model number data. Pic IS the actual rule, serial number is 394950.

This rule was used in the electrical industry and for other vector calculations. Pre-1947 scale copyright version, not very common. Has the owner's last name, Lo, engraved in two tiny spots on the outside edges of the rule body, very inconspicuous, hard to show.


CLICK to see! Want to know more about our
NEW SPHERE CASES?
JUST CLICK HERE!
Includes NEW CASE!
Has Hyperbolic Scales!


CLICK for bigger PIC
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$165
(21 Scales)
Front - L, LL1, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL0, LL00, A [ B, T, ST, S, ] D, Th, Sh2, Sh1
4083-3. Like this rule?
E-Mail US!
CLICK TO ORDER
MODEL
Rule Details
Graphic
K&E
K & E
4092-3S
Log Log
Duplex

USA



SORRY, SOLD


Includes:



Leather Case
Rule
12.5"/10" Full Size Slide Rule
complete with sewn leather case. This is the early log log rule from K+E, which still has trig functions in degrees, minutes and seconds (useful for map navigation). This is a very early rule, with the flat plate, frameless cursor (patent date 8/17/18) in perfect condition, a very uncommon event.

The slide has serial number 331959, there is NO K+E logo, only the name, with early patent dates of june 5, 00; and Dec. 22, 08; and April 24, 24. The serial number and otehr clues appears to date the rule manufacture about 1933, 70 years ago. The rule is in very good condition, the case in good condition, but has numerous wear marks. A very nice set with old trig scales from long ago.
Trig in degrees, minutes and seconds.

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$165
(17 Scales)
Front - K, DF, [ CF, CIF, CI, C, ] D, L
Back - LL0, A, [ B, S, T, C, ] LL3, LL2, LL1
4092-3S. Like this rule?
E-Mail US!
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MODEL
Rule Details
Graphic
K&E
K & E
4161-3
Mannheim

USA



SORRY, SOLD


Includes:



Slip Case
Rule
12.5"/10" Full Size Slide Rule
complete with orginal embossed green slip case. Cream white Ivorite construction with black engraved scales. This is essentially a late version of the 4053 made all of Ivorite like the 4150 series pocket rules, with folded scales, and decimal trig scales related to the C and D scales.

The rule has side rulers in both cm and inches, the back has conversion factors. The rule and cursor are in excellent condition, the case is in good condition, with some folding creases at the top flaps. A very interesting rule that marked the serious shift along with the 4181 to ivorite body design for K+E. Serial number is 221778, the actual rule is pictured.
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$145
(12 Scales, 2 rulers)
Front - (inch) K, DF, [ CF, L, CI, C, ] D, A (cm)
Back - factors [ T, ST, S, C, ]
4161-3. Like this rule?
E-Mail US!
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MODEL
Rule Details
Graphic

K+E
4181-3
10" Log Log Duplex Decitrig

USA

Check for availability

Includes:



Green Composite Case
Belt Loop
Box
Booklets
Rule
10" Log Log Duplex Decitrig Slide Rule one of K+E's premiere duplex rules, in the final updated Ivorite format. Very good rule with green composite, K+E case and embossed logo on the leather flap.

This is the updated version of the famous older 4081-3 rule, also later called the 68-1251, and has two color rule markings, slanted trig scale values for easy orientation and scale range data. Pic is NOT the exact rule offered, but looks even better.

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$175
(21 Scales !)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A [ B, T, SRT, S, ] D, DI, LL1
K+E 4181-3. Like this set?
E-Mail US!
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MODEL
Rule Details
Graphic

4181-3
Log Log
Duplex
Decitrig
10"

USA

Check for availability
Includes:
New SRC Case
Rule
10" Log Log Duplex Decitrig Slide Rule one of K+E's premiere duplex Log Log rules, in the final updated Ivorite format. Very good+ rule with either a brand new SRC case or the original green K+E leather flap case, your choice.

This is the updated Ivorite body version of the famous older 4081-3 rule, also later called the 68-1251, and has two color rule markings, slanted trig scale values for easy orientation and scale range data. Pic IS NOT the exact rule offered but looks the same, the actual rule serial numbers vary with availability.


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Great Set with BRAND NEW Sphere Case!

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$185
(21 Scales !)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A [ B, T, SRT, S, ] D, DI, LL1
K+E 4181-3. Like this slide rule?
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K&E
K & E
68-1100
Deci-Lon

USA


Just 1 another set coming

Includes:


Leather Case
Rule
Belt Loop
Hardcover Manual
Display Box
Care Booklet
Pocket Rule Catalog
Our most requested K+E Rule, includes the belt loop!

12"/10" Full Size Slide Rule
K+E's famous Deci-lon duplex rule set in the original factory display box in excellent condition. The set includes the leather case, belt loop, rule and hardbound manual. This is K+E's late production flagship rule, with unbreakable cursor, Ivorite body and adjustable frame. Has 8 log log scales, a split square root scale, DI and folded scales. The set is in excellent un-used condition, the rule and case look mint, and the box is excellent, with no prices anywhere, and very minor storage scuff marks.

An outstanding and powerful rule, cleverly designed and beautifully preserved. Here's a chance to get a complete outstanding rule set, with all the accessories in the original display box, a wonderful addition to any collection. Checked and aligned, ready to use. Rule and set pictured IS NOT the exact one offered, but looks the same EXCEPT that the set we have does not have the blue paper ring around the case as shown, and INCLUDES the care booklet and pocket rule catalog.
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$425
(26 Scales)
Front - Ln-3, Ln-2, Ln-1, Ln-0, A, [ B, T, SRT, S, C, ] D, DI, K
Back - Sq1, Sq2, DF, [ CF, CIF, L, CI, C, ] D, Ln0, Ln1, Ln2, Ln3
Prime 68-1100 Deci-lon. Like this rule?
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K&E
K & E
68-1100
Deci-Lon

USA



Have 3


Includes:



Leather Case
Belt Loop
Rule
Our most requested K+E Rule!

12"/10" Full Size Slide Rule
K+E's famous Deci-lon duplex rule, in very good condition, with very good orange sewn leather case, and some accessory belt loops. This is K+E's late production flagship rule, with unbreakable cursor, Ivorite body and adjustable frame, all free of marks, names or initials. Has 8 log log scales, a split square root scale, DI and folded scales.

An outstanding and powerful rule, cleverly designed. Here's a chance to get a wonderful rule set that will give many years of service. Cleaned, lenses polished, and body aligned, ready to use. Rule pictured IS NOT the exact one offered, but looks the same.
Belt Loop Available
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$275
(26 Scales)
Front - Ln-3, Ln-2, Ln-1, Ln-0, A, [ B, T, SRT, S, C, ] D, DI, K
Back - Sq1, Sq2, DF, [ CF, CIF, L, CI, C, ] D, Ln0, Ln1, Ln2, Ln3
Prime 68-1100 Deci-lon. Like this rule?
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K&E
Final
Deci-Lon

USA



Just 1


Includes:



Orange Case
Rule
Our most requested K+E Rule!

12"/10" Full Size Slide Rule
K+E's famous Deci-lon duplex rule in its final configuration, with NO MODEL NUMBER, in excellent condition, with gold embossed orange leather flap case. The has the thinner leather case, typical of the final rules. This is K+E's final production flagship rule, with unbreakable cursor, Ivorite body and adjustable frame.

Note that the slide's finger lines are removed in this version. Has 8 log log scale, a split square root scale, DI and folded scales.

An outstanding and powerful rule, everything has been cleaned and aligned, ready for use.

A great addition to any K+E collection. The pic IS NOT the actual rule for sale, but looks the same, all items in excellent condition. We see these very rarely with all parts in this condition, so don't miss this rule.
FINAL PRODUCTION DECI-LON

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$275
(26 Scales)
Front - Ln-3, Ln-2, Ln-1, Ln-0, A, [ B, T, SRT, S, C, ] D, DI, K
Back - Sq1, Sq2, DF, [ CF, CIF, L, CI, C, ] D, Ln0, Ln1, Ln2, Ln3
Final Deci-lon. Like this rule?
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K+E
68-1210
Log Log Duplex
Decitrig

USA


Check for availability
Includes:
Green Case
Rule
10" Log Log Duplex Decitrig Slide Rule one of K+E's premiere duplex rules, in the final wood body format, with inlaid wood edges and improved unbreakable cursor. This is another confusing K+E catalog numbering issue, the 68-1220 meant the 68-1210 rule in the green case, but the rule itself is unchanged at 68-1210, and is really the re-named 4081-3. Excellent condition rule, with excellent green leather flap case.

Great metal work, cursor and lenses, beautiful condition set for somebody looking for this high end rule. We get very few in good shape. Pic IS NOT the actual set, but looks the same.

Excellent condition, with
inlaid wood edges!
Wahoo!


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$195
(21 Scales !)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A [ B, T, SRT, S, ] D, DI, LL1
K+E 68-1210 Set. Like this rule?
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K&E
K & E
68-1251
Log Log
Duplex
Decitrig

USA



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Includes:



Leather Case
Rule
12.5"/10" Full Size Slide Rule
Log Log Duplex Decitrig rule, very late Ivorite body version, excellent example, near mint condition. Late production version of the famous 4081-3, excellent new improved cursor and metalwork, and embossed orange leather case. We get many requests for this rule, but get few good examples of this quality.

An outstanding and powerful rule, and great addition to any K+E collection. Have several with factory and SRC cases. Original 1947 scale copyright and a delight to use and look at.

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$225
(21 Scales)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A, [ B, T, SRT, S, ] D, DI, LL1
68-1251. Like this rule?
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K&E
K & E
68-1256
Log Log
Duplex
Decitrig

USA



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Includes:



Green Case
Box
Rule
Care Booklet
Box end
Care Booklet

12.5"/10" Full Size Slide Rule
Log Log Duplex Decitrig rule, very late Ivorite body version, wonderful set, complete with box and care booklet! Late production version of the famous 4081-3/4181-3, excellent new improved cursor and metalwork, and excellent green case. We get many requests for this rule, but get few good examples.

The number 68-1256 refers to the boxed set with green case, the rule is marked 4181-3, a transitional package.

An outstanding and powerful rule, and great addition to any K+E collection. Serial number for sale is .047919. NOT The exact rule shown, but looks the same. Original 1947 scale copyright and a delight to use and look at.

Late 4181-3 Rule Set

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$195
(21 Scales)
Front - LL02, LL03, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
Back - LL01, L, K, A, [ B, T, SRT, S, ] D, DI, LL1
68-1256 Set. Like this rule set?
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K+E

68-1565 / GP 12 Set

USA

Just 1
Includes:
Black Leather Case
Rule
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This is a rare opportunity to get this exceptionally useful late version Ivorite body rule from K+E (68-1565), with mint gold-embossed, black sewn leather case. This very late (1964 scale copyright) modern style rule has the unique inch/cm converter scales and rulers on the rear side. A very attractive and useful rule, with dual Sq scales, trig and folded scales, plus the metric conversion/rulers/log calculator on the rear face.

The pic shows the actual condition. It has the sloped end brace style of the Deci-lon, but made in plastic, rather than metal, a very nice looking set, and not easy to find, especially in such good condition.
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$125
(16 Scales, 2 Rulers)

Front - Sq1, Sq2, DF, [ CF, T, SRT, S, CI, C, ] D, A, K
Back - number, [ cm, (factors and data) inch, ] Logarithm
68-1565 / GP12 Set. Like this rule set?
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K&E
K & E
68-1892
K-12 Prep

USA


SORRY, SOLD

Includes:



Slip Case
Rule
Manual
K+E's upgraded format K-12 Student rule

12"/10" Full Size Slide Rule in updated plastic body format with green end braces.
K+E's stylish green and white student rule meant to look like a deci-lon. Includes vinyl slip case and manual. A very nice set for a new learner. The rule shown IS NOT the actual one offered for sale, but looks the same.
Great student rule!


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$55
(9 Scales)
Front - K, A, [ B, S, CI, T, C, ] D, L
Back - [ BLANK ]
Prime 68-1892 / K-12 Prep
Like this rule?

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Faber-CastellARISTODIETZGEN
NESTLER Others...

MODEL
Rule Details
Graphic
NESTLER

No. 23R/3
System Rietz

Made In Germany



SORRY, SOLD, but more coming!


Includes:



Hard Case
Rule
12"/10" Full Size System Rietz Mannheim Slide Rule.
Nestler's most famous Mannheim rule, the same kind used by Werner von Braun and Albert Einstein. This rule has a mahogany core, with white celluloid faces, black, and red filled and engraved scales. Has the Rietz over-range scale extensions. This is a later production rule (R/3 revision), and in excellent condition over-all. Scales are unmarked. Glass 3 line cursor. 2-part black paperboard case in good condition. Pics ARE NOT the exact rule for sale, but look very similar, some additional scuffs on the box in this example for sale.

This simplex rule has cm side rulers 1:1 and 1:25, (great to leave parked on your desk!), all standard front/rear scales, inner body ruler extension, and conversion tables on the rear. Enjoyable to use, and very lovely to look at. I think is one of the most classic and attractive German designs, and this example shows those features beautifully.
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$169
(10 Scales and 2 rulers)
Front - K, A, [ B, CI, C, ] D, L
Back - S, S+T, T plus Conversions.
Side - cm 1:1 and 1:25 cm rulers.
No. 23R/3. Like this rule?
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NESTLER

No. 23R/3
System Rietz

Made In Germany



SORRY, SOLD, but more coming!


Includes:



Hard Case
Rule
12"/10" Full Size System Rietz Mannheim Slide Rule.
Nestler's most famous Mannheim rule, the same kind used by Werner von Braun and Albert Einstein. This rule has a mahogany core, with white celluloid faces, black, and red filled and engraved scales. Has the Rietz over-range scale extensions. This is a later production rule (R/3 revision), and in excellent condition over-all. Scales are unmarked. Glass 3 line cursor. 2-part black paperboard case in bad condition, good for storage only. Pics ARE the exact rule for sale.

This simplex rule has cm side rulers 1:1 and 1:5, (great to leave parked on your desk!), all standard front/rear scales, inner body ruler extension, and conversion tables on the rear. Enjoyable to use, and very lovely to look at. I think is one of the most classic and attractive German designs, and this example shows those features beautifully. Pics are the actual rule offered.

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$149
(10 Scales and 2 rulers)
Front - K, A, [ B, CI, C, ] D, L
Back - S, S+T, T plus Conversions.
Side - cm 1:1 and 1:5 cm rulers.
No. 23R/3. Like this rule?
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ARISTO
Aristo
Darmstadt
967U

Germany



SORRY, SOLD


Includes:



Plastic Case
Data Chart
Rule
12"/10" Full Size Aristo Darmstadt Slide Rule.
one of Aristo's high end simplex rules, very popular in Europe. This rule has an engineering pastic body, with filled and engraved black and red scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus 4 line cursor. Includes Log Log, Pythagorean (P) and BI scales. Has a 2-part textured plastic case and accessory data chart that stows inside the case.

A classic Aristo design and beautifully thought out rule, all pieces are in excellent condition.Pic is the actual rule offered.
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$115
(14 scales, 1 ruler, 4 cursor lines)
Front - cm/ K, A, [ B, BI, CI, C, ] D, P, S, T
Back - [ L, LL3, LL2, LL1 ]
Darmstadt 967U. Like this rule?
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ARISTO
Aristo
Multilog
970

Germany



SORRY, SOLD


Includes:



Leather Case
Rule
12"/10" Full Size Aristo Multilog Slide Rule.
one of Aristo's high end professional rules, very popular in Europe. This rule has an engineering pastic body, with filled and engraved black and red scales, with yellow accent stripes (a bit faded) on reference scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus anti-skid bottom bumpers, and 6 line cursor. Includes Log Log, folded and DI scales. Has a great chocolate bown leather case with front snap and BELT LOOP!.

A classic Aristo design and beautifully thought out rule. We can provide a manual copy for this rule for $10 copy cost. Pic is the actual rule offered.
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$145
(Incredible 24 scales!)
Front - LL00, K, A, [ B, T, ST, S, C, ] D, DI, LL0
Back - LL01, LL02, LL03, DF,[ CF, CIF, L, CI, C, ] D, LL3, LL2, LL1
Multilog 970. Like this rule?
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DIETZGEN

No. 1732
Maniphase Multiplex
Decimal Trig
Log Log

Made in USA



SORRY, SOLD


Includes:



Leather Case
Rule
12"/10" Maniphase Multiplex, Decimal Trig Log Log Slide Rule.

This high end Dietzgen rule has a mahogany core, with white celluloid faces, black and red filled and engraved scales, excellent late style adjutable metal framed cursor and lenses. A rule very similar to K+E's 4081 stye duplex rule, this is an early 1732 format, with slightly different scales.

Has 5 log log scales and folded scales, plus decimal trig scales. Black hardboard case with embossed leather flap, all items in very good condition, free of marks, initials, etc. A very nice duplex rule set. Pic is exact rule offered, s/n 536058.
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$150
(20 Scales)
Front - LL0, LL00, A, [ B, T, ST, S, ] D, DI, K
Back - L, LL1, DF, [ CF, CIF, CI, C, ] D, LL3, LL2
No. 1732. Like this rule?
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Faber-Castell
2/83
Novo-Duplex

Made In Germany


SORRY, SOLD

Includes:


Display Case
German Manual
Rule
12"/10" Full Size Novo-Duplex Slide Rule.
Faber's advanced duplex log log rule, widely used in Europe, but seldom seen in North America. This rule has a plastic body with adjustable gold anodized aluminum end braces, black and red filled and engraved scales, plus green accent stripes. This is a powerful design, with the Rietz over-range scale extensions, Pythagorean scale (P), 6 log log scales, and w and w' expanded square root scales.. Scales are all self-documenting on the right hand side, and the rule has a 5/6 line cursor.

This set has the green bottom/clear top plastic display case in good condition, and the original German factory manual. Enjoyable to use, and lovely to look at, this is a flexible rule with a very attractive appearance. The later 2/83N version adds multi-colored stripes on a larger body core. Pic is NOT the actual rule offered, but looks the same except for the manual. Everything is in very good condition. Note: be careful not to use windex or other ammoniated cleaners, as they will remove the colored strips and scale filling colors.
DISPLAY CASE

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$195
(25 Scales and 5/6 line cursor)
Front - K, T1, T2, DF, [ CF, CIF, CI, C, ] D, S, ST, P
Back - LL03, LL02, LL01, W2, [ W2', CIF, L, C, W1', ] W1, LL1, LL2, LL3
2/83. Like this rule?
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Faber-Castell


1/54
System Darmstadt

Made In Germany



SORRY, SOLD


Includes:



Hard Case
Rule
12"/10" Full Size System Darmstadt Mannheim Slide Rule.
Faber's advanced Mannheim rule, widely used in Europe. This rule has a wood core, with white celluloid faces, black and red filled and engraved scales, plus 2 side cursors and scale sets. This is a very unusual design, with a complex 3-sided cursor.

Has the Rietz over-range scale extensions, plus the Pythagorean scale (P), side log scale on top, and side sine and tangent scales at the bottom. Slide reverse has 3 log log scales (ex). Scales are partially marked. Celluloid 3 line cursor. 2-part black paperboard case in good condition (considering the age).

This rule has an illustrated manual on the rear (very unique presentation), and side (and inside!) cm ruler. Enjoyable to use, and lovely to look at, every surface has been used to do something useful. Pic is the actual rule offered. Has the name of the previous owneer (Hermann Jhen) engraved inside, and stamped on the case exterior, nicely done, not intrusive.
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We have an original FC manual available for this exact rule, in excellent condition, $30.
$150
(13 Scales and 2 cm rulers)
Front - K, A, [ B, CI, C, ] D, P
Back - 3 (ex) scales, plus Instructions.
Top Side - cm ruler, lg.
Bottom Side - sin, tg
Inside - cm ruler
1/54. Like this rule?
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Faber-Castell


111/54
System Darmstadt

Made In Germany



SORRY, SOLD


Includes:



Display Case
Rule
12"/10" Full Size late production System Darmstadt Mannheim Slide Rule.
Faber's advanced Mannheim rule, widely used in Europe. This rule has a plastic body, with fine black and red filled and engraved scales, plus 1 side cursor and scale (L). Has a 5 line cursor. This is a very nice design, with a 2-sided cursor.

Has the Rietz over-range scale extensions, plus the Pythagorean scale (P), side log scale on the bottom edge. Slide reverse has 3 log log scales (ex), and two rear cursor windows. Scales are self-documenting.

This rule has formulas and handy constants on the rear, and side cm ruler. Enjoyable to use, and lovely to look at, every surface has been used to do something useful. Pic is the actual rule offered. Nice clear/green display case, with padded mounts.
DISPLAY CASE

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$115
(13 Scales and cm ruler)
Front - K, A, [ B, CI, C, ] D, P sin, tg
Back - 3 (ex) scales, plus Instructions.
Top Side - cm ruler
Bottom Side - log
111/54. Like this rule?
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Faber-Castell


111/54
System Darmstadt

Made In Germany



SORRY, SOLD


Includes:



Hard Case
Rule
12"/10" Full Size late production System Darmstadt Mannheim Slide Rule.
Faber's advanced Mannheim rule, widely used in Europe. This rule has a plastic body, with fine black and red filled and engraved scales, plus 1 side cursor and scale (L). Has a brand new 5 line cursor installed. This is a very nice design, with a 2-sided cursor.

Has the Rietz over-range scale extensions, plus the Pythagorean scale (P), side log scale on the bottom edge. Slide reverse has 3 log log scales (ex), and two rear cursor windows. Scales are partially marked.

This rule has an illustrated manual on the rear (very unique presentation), and side cm ruler. Enjoyable to use, and lovely to look at, every surface has been used to do something useful. Pic is the actual rule offered. Nice 2-part late production green hardboard, rounded storage case.
FC 111/54 CLICK for bigger PIC!
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$115
(13 Scales and cm ruler)
Front - K, A, [ B, CI, C, ] D, P sin, tg
Back - 3 (ex) scales, plus Instructions.
Top Side - cm ruler
Bottom Side - log
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Faber-Castell
111/98
Elektro

Made In Germany



SORRY, SOLD

Includes:


Reprint
Rule
12"/10" Full Size Elektro Mannheim Slide Rule.
Faber's famous Elektro rule in the late production version, with an all plastic body, and rear operating data.

This rule has the Rietz over-range scale extensions dynamo/volt scales, log log scales and an edge K scale (very interesting). Scales are self documenting on the right hand side. 5 line cursor. These are new rules, but had no cases or manuals, we will furnish a reprint of the original FC manual for reference on request. Pic is the actual rule offered.
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$110
(13 Scales 5 line cursor and 1 ruler)
Front - LL2, A, [ B, CI, C, ] D, LL3, Dynamo, Volt
Back - S, L, T, plus Conversions.
Edge - K scale
111/98 Elektro. Like this rule?
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DIETZGEN
1746
Duplex Trig

USA



SORRY, SOLD


Includes:



Leather Case
Rule
12.5"/10" Full Size Slide Rule
complete with stitched brown leather case, rule and case in very good condition. Cream white laminated mahogany core rule, with exposed wood edges (no engraving) and black/red scales. This rule has decimal trig functions and folded scales.

All original parts, carefully restored and cleaned, serial number is 710031.

A welcome addition to any collection, in great condition.
Wood Edged Rule

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$135
(14 Scales)
Front - DF, [ CF, CIF, CI, C, ] D, L
Back - A, [ B, T, ST, S, ] D, K
1746. Like this rule?
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