F.54 Data Sheet 54

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