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Hemmi Slide Rule Co. No. 50 10" Linear slide rule
Named collection: Keuffel & Esser Company Collection
Object type: slide rule
Maker: Hemmi Slide Rule Co.
Place made: Japan
Materials: bamboo; metal; celluloid
Measurements: 1/4 in x 11 1/4 in x 1 1/4 in
This appears to be a "Sun" Hemi No. 50 slide rule. Gauge Marks: C: C(1128), Pi, C1(3568) // D: Pi Cursor: metal frame, glass, 1 hairline Reverse slide scales are keyed to the C/D scale and are D.M.S. Reverse Label: conversion factors and trigonometry sign table. Condition: Typical
Keuffel & Esser Company Slide Rule Collection Donated by InteliCoat Technologies