Linear slide rules

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Sun-Hemmi 4" (magnifier *1.6)

A Sun Hemmi 4" pocket slide rule with original leather case. Manufactured in Bamboo with a celluloid coating. Front scale A, B, CI, C & D. Rear scale S,L & T. Made in Occupied Japan date this to 1946 - 1952

D Scale length: 160 mm. Significant digits: 2.8 to 3.7.


Copyright 2012, Dave Hoyer.