F.297 Data Sheet MJS-p-0442

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Lawrence, Air and Hydraulic Cylinder Rule, 1950

Serial Number or Date Stamp:

Country: USA

Primary construction material: wd

Case included?: yes

General Description: Specialty linear slide rule

Length of 1 decade = 9 in, and overall scale length = 9 in. The largest physical dimension is 10 in.

Front Scales: DIA A [ B CI C ] D GAL

Back Scales:

Notes: Miller Motor Company, made by Lawrence

References: http://sliderulemuseum.com/Lawrence.htm; JOS Vol. 5 p59

Date Acquired: 09/16/2026