noID, noID, c.1970
Serial Number or Date Stamp:
|Country: JPN||Primary construction material: pl||Case included?: no|
General Description: Basic linear polyphase slide rule
Length of 1 decade = 5 in, and overall scale length = 5 in. The largest physical dimension is 5 in.
Front Scales: A [ B CI C ] D K
Notes: Made in Japan; ALCO?; from my high school years; note C and rho gauge marks
Date Acquired: 06/15/1973