Sans & Streiffe No 311 Greg's Slide Rules
Front Left

Front Right

Back Left

Back Right

Sans & Streiffe No 311 - Notes

Not mentioned in Hopp's book, this rule looks to be almost identical to the Relay 150.

Sans & Streiffe appear to have had a number of these Relay/Ricoh rules made with their brand name.


Further details about this Slide Rule:

Brand Sans & Streiffe
Model No. 311
Country of Manufacture Japan
Scales Front L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2
Scales Back LL0, LL00, A [B, K, CI, C] D, S, ST, T
Number of Scales 21
Slide Rule Materials Bamboo/Celluloid
Cursor Materials Nylon/Plastic with metal screws
Cursor Lines 1 Front, 1 Rear
Scale Length 25 cm
Length 32.2 cm
Width 4 cm
Condition Good
Documentation None
Accessories Leather case

Last updated: 2006-03-05 18:00 AEST
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