F.54 Data Sheet 54

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Engineering Instruments, 10-B, c.1950

Serial Number or Date Stamp:

Country: USA

Primary construction material: wd

Case included?: no

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

Front Scales: A [ B CI C ] D K

Back Scales:

Notes: Peru, IN; no cursor

References: http://www.sliderulemuseum.com/Papers/TheUniqueLawrenceV9_ByDavidRance.pdf

Date Acquired: 08/01/2020