F.98 Data Sheet MJS-p-0091

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Gilson, Midget, c.1940

Serial Number or Date Stamp:

Country: USA

Primary construction material: Al

Case included?: yes

General Description: Advanced circular log-log trig/decitrig slide rule

Length of 1 decade = 12 in, and overall scale length = 12 in. The largest physical dimension is 4 in.

Front Scales: C CI L A LL Ab frac drill_thread in/mm

Back Scales: theta1 S1 T1 theta2 S2 T2 theta3 S3 T3 frac

Notes: made for Dietzgen; 99 mm Gilson Midget Type VI version I

References: http://www.sliderulemuseum.com/; JOSvol9no1 (2000)

Date Acquired: 08/01/2020