Charvoz-Roos, SR-104, c.1941
Serial Number or Date Stamp:
|Country: USA||Primary construction material: wd||Case included?: yes|
General Description: Basic linear polyphase slide rule
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
Notes: Made in U.S.A.; no company reference
Date Acquired: 08/01/2020