Keuffel & Esser N4083-3 Greg's Slide Rules
Front Left

Front Right

Back Left

Back Right


Keuffel & Esser N4083-3 - Notes

  1. This rule is very similar to the 4081 series of rules with the omission of the K scale and the addition of three vector scales, Th, Sh1 and Sh2 which were used extensively in the electronics and power industry.
  2. I believe that this rule probably dates from roughly 1949, the serial number is about right for that date and this model first appears in the K&E 1949 catalogue. This model was listed in the 1954 catalog as the 4083-3 without the N prefix.
  3. For K&E serial number dating use the link here to Ed Chamberlain's reference set of dating curves.
  4. For K&E Catalogs refer to the K&E catalog site which is provided by Clark McCoy.


Further details about this Slide Rule:

Brand Keuffel & Esser
Model N4083-3 Log Log Duplex Vector
Country of Manufacture USA
Scales Front LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2
Scales Back L, LL01, LL1, A [B, T, ST, S] D, Th, Sh2, Sh1
Number of Scales 22
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
Accessories None

Last updated: 2002-09-08 22:00 AEST
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