F.300 Data Sheet MJS-p-0142

Relay-Ricoh, 150, 1972

Serial Number or Date Stamp: US-6L

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: L LL1 DF [ CF CIF CI C ] D LL3 LL2

Back Scales: LL0 LL00 A [ B K CI C ] D S ST T

Notes: Sans & Streiffe model 311; very nice condition

References: http://sliderulemuseum.com/SR_Dates.htm#Relay

Date Acquired: 08/01/2016