USD $95
Nestler’s powerhouse late production over-sized duplex rule. BRAND NEW rule, with 2 part plastic case, manual, accessory ruler and factory box. Has normal and folded basic scales (at 2.7), expanded trig scales, split square root scales, Pythagorean scale, 8 log log scales, and a 4/2 line cursor. Has body supports with skid bumpers (to allow flat operation without damaging the cursor), and a pale green stripe on the entire slide (both sides), and black filled/ engraved scales with red digits on some scales.
An excellent full sized Log Log rule, the top of the line from Nestler. All scales are self documenting on the right hand side.
(28 Scales, 4/2 Cursor Lines) (RH)
Front – LL00, LL01, LL02, LL03, DF [ DF, CIF, CI, C ] D, LL3, LL2, LL1, LL0
Reverse – P, S, T1, T2, A [ B, K, CI, C ] D, R1, R2, L, ST
Stock: 2
USD $95
An excellent full sized Trig rule, great for high school students. All scales are self documenting on the right hand side. Nestler’s late production style duplex rule. BRAND NEW rule, with 2 part plastic case. Has normal and folded basic scales (at 3), expanded trig scales, and a 6 line cursor. Has green body supports, and a pale green stripe on the entire slide (both sides), and black and red filled/ engraved scales.
Scales include:
Front – K, A, [ B, CI, C, ] D, L
Reverse – T1, T2, DF, [ CF, CIF, CI, C, ] D, S, ST
Stock: 2
USD $35
This is a more basic rule that is more geared towards drafting and surveying. It features 12 scales (two along the lower vertical edge of the rule), and a metric ruler along the upper edge of the rule.
Scales include:
Front – Scale identification not clear, but it does include C, D, S, T, ST
Back – Reference formulae and data (in German)
Stock: 1
USD $85
This is a very unusual vintage wood rule from Nestler, which features a metric ruler along the upper edge of the rule, and two supplementary scales along the lower vertical edge, read out using a small lens fixed to the lower edge of the main cursor.
Scales include:
Front – Unsure on exact nomenclature of certain scales, but there are 9 scales including the two on lower edge of the ruler, and the following on the reverse side of the slide: S, S&T, T
Back – Constants and data tables (in German)
Stock: 1
USD $65
An advanced double sided slide rule, featuring an alternate color slide (light green – the color of minty freshness) for easier reading.
Scales include:
Front – CT, T, ST, DF, CF, CIF, CI, C, D, P, S, CS
Back – LL01, LL02, LL03, A, B, L, K, C, D, LL3, LL2, LL1
Stock: 1
USD $129
Featuring the Nestler green central slide, this rule has no scale bleeding and is in excellent condition. Features an imperial ruler along the upper edge fo the rule.
Scales include:
Front – X, X2, X3, 1/x, SIN, COS, LL1, LL2, LL3
Back – Blank
Stock: 1
Sphere Research Corporation 
