F.263 Data Sheet MJS-p-0385

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Lawrence, 12-H, 1946

Serial Number or Date Stamp:

Country: USA

Primary construction material: wd

Case included?: yes

General Description: Specialty linear ratio/proportion slide rule

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

Front Scales: LineLength [ Lines Points CPP ] Chars TypSize

Back Scales:

Notes: Lawrence Copyfitter; Copyright 1946 by Owen T. Taylor, Dayton 7, Ohio; instructions on back

References: http://sliderulemuseum.com/Lawrence.htm; JOS Vol. 5 pp. 55-61

Date Acquired: 06/14/2025