W & G Model 432 - "Dualface" Comprehensive Greg's Slide Rules
Front Left

Front Right

Back Left

Back Right

W & G Model 432 - "Dualface" Comprehensive - Notes

  1. W & G made slide rules in Australia from about the start of WWII through to the 1960's and possibly early 1970's.
  2. This model rule was a basic rule with some additional scales/guage points for electrical problems.
  3. Ron Manley has another example of this rule with illustrations of usage of some of the specialist electrical scales.


Further details about this Slide Rule:

Brand W & G - White and Gillespie
Model Model 432 - Dualface Comprehensive
Country of Manufacture Australia
Date of Manufacture after WWII
Scales Front LL(LL1), L, A [B, Reciprocal(CI), C] D, Cu(K), LL(LL2)
Scales Back Sine, Kw(A) [HP(B) & Temp (Farenheit), Tangent] Voltage Drop, Dynamo Efficiency
Number of Scales 16
Slide Rule Materials Wood/Celluloid
Cursor Materials Metal/Glass
Cursor Lines 1 Front, 1 Back
Scale Length 25.5 cm
Length 34.9 cm
Width 4.3 cm
Condition Good
Documentation This rule came with no documentation but the Slide Rule Manual by BA Simm was written for this model slide rule:

BA Simm - Slide Rule Manual

A slightly later version of this manual is available for download.

Accessories Heavy cardboard slip case

Last updated: 2002-10-06 22:00 AEST
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