F.305 Data Sheet MJS-p-0180

Relay-Ricoh, 151, c.1974

Serial Number or Date Stamp:

Country: JPN Primary construction material: bb Case included?: yes

General Description: Advanced linear log-log duplex slide rule

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

Front Scales: LL01 LL02 LL03 DF [ CF CIF CI C ] D LL3 LL2 LL1

Back Scales: LL00 L K A [ B S ST T C ] D DI P LL0

Notes: Sans & Streife model 312; no date code

References: https://sliderulemuseum.com/MiscUSA/S320_Sans&Streiffe312.jpg

Date Acquired: 02/20/2021