Keuffel & Esser 4080-3 Greg's Slide Rules
Front Left

Front Right

Back Left

Back Right

Keuffel & Esser 4080-3 - Notes

  1. I believe that this rule probably dates from roughly 1946 or 1947, the serial number is about right for that date and and the revised model with all the details on the edge was introduced in 1949. For K&E serial number dating use the link here to Ed Chamberlain's reference set of dating curves.


Further details about this Slide Rule:

Brand Keuffel & Esser
Model 4080-3 Log Log Duplex Trig
Country of Manufacture USA
Scales Front L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2
Scales Back LL0, LL00, A [B, T, ST, S] D, DI, K
Number of Scales 20
Slide Rule Materials Wood/Celluloid
Cursor Materials Metal/Glass
Cursor Lines 1 Front, 1 Back
Scale Length 25 cm
Length 31.7 cm
Width 4 cm
Condition Good
Documentation None
  1. Leather and composite case
  2. Original box

Last updated: 2002-08-17 11:20 AEST
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