F.164 Data Sheet MJS-p-0208

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K&E, 4070-3, 1950

Serial Number or Date Stamp: 550030

Country: USA

Primary construction material: wd

Case included?: yes

General Description: Basic linear polyphase duplex slide rule

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

Front Scales: DF [ CF CIF CI C ] D L

Back Scales: K A [ B T ST S ] D DI

Notes: Polyphase Duplex Trig

References: https://www.mccoys-kecatalogs.com/KEModels/ke4071family.htm

Date Acquired: 08/12/2021