ACU-MATH No. 1311 (1) Greg's Slide Rules
Front Left

Front Right

Back Left

Back Right

ACU-MATH No. 1311 (1) - Notes

  1. This log log decimal trig rule is of a similar age and design as the Acu-Math 511 (1) in my collection.
  2. I have a later version of this Acu-Math 1311 (2) which shows the changes which were made between the two examples.


Further details about this Slide Rule:

Model No. 1311 - Log Log Decimal Trig
Country of Manufacture USA
Scales Front LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2
Scales Back LL01, K, A [B, T, ST, S] D, L, LL1
Number of Scales 20
Slide Rule Materials Metal core, plastic faces with metal end pieces on back only. Metal core looks like magnesium
Cursor Materials Plastic
Cursor Lines 1 Front, 1 Back
Scale Length 25 cm
Length 31.7 cm
Width 3.9 cm
Condition Good.
Documentation None
  1. Leather Case
  2. Original Box

Last updated: 2002-08-24 18:00 AEST
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