F.173 Data Sheet 173

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K&E, 4139, 1946

Serial Number or Date Stamp: 167058

Country: USA

Primary construction material: wd

Case included?: yes

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

Front Scales: LC A [ B T ST S ] D DI

Back Scales: L DF [ CF CIF CI C ] D 2PI

Notes: Cooke Radio Slide Rule; Case: Polyphase Duplex DeciTrig 4071-3S

References: JOSv24.2p36 (2015)

Date Acquired: 08/01/2020