F.199 Data Sheet MJS-p-0255

K&E, 4110, 1940

Serial Number or Date Stamp: 808703

Country: USA Primary construction material: wd Case included?: no

General Description: Advanced linear log-log duplex slide rule

Length of 1 decade = 6.5 in, and overall scale length = 13 in. The largest physical dimension is 15 in.

Front Scales: P F A [ B T S CI C ] D

Back Scales:

Notes: Power Trig Slide Rule; very rare; not listed in any catalog; developed at US Naval Academy

References: JOS 2.1 p26; JOS 14.1 p28; JOS 20.1 p63

Date Acquired: 04/14/2022