All Purpose Slide Rules

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Keuffel & Esser

( 9 scales)

(7 scales)

(9 scales)

(9 scales)

(8 scales)

(11 scales)

(13 scales)

(20 scales)

(14 scales)

(26 scales)

Hemmi - Frederick Post

(23 scales)

(23 scales)

(24 scales)

(7 scales)

Aristo

(10 scales)

Ricoh

Faber Castell

(30 scales)

(24 scales)

A.W. Faber 357

(7 scales)

Lawrence

(6 scales)

Sans & Streiffe

(25 scales)

Scientific Instruments Company

(7" - 25 scales)

Dietzgen

(9 scales)

Acu-Math

(9 scales)

(10 scales + Trig Formulas )

Pickett

(10 & 17 scales)

(6" diameter - 15 scales)

(10 scales + Unit Conversion

(22 - scales)

(24 - scales)

Nestler

(9 scales)

(9 scales)

(24 scales)

(10 scales)

Friedmann



Gilson-Compass

(14 scales)

Concise

(5 scales)

Gilson

(11-scales)

Ferns Calculators

(5" diameter - 8 scales)

Allegheny

(4.25" diameter - 7 scales)

Mascot & Monitor

(6" diameter - 4 scales)

Huge-Owens

LOGOMATH

(2" diameter - 1 Spiral Scale)

Charvoz-Roos

(13 scales + Formulas)

(19 scales)

KLPS

(14 - scales + instructions)

TCOR

(5 -scales)

LFAI

(12 - scales)