F.177 Data Sheet MJS-p-0017

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K&E, 4088-3, 1922

Serial Number or Date Stamp:

Country: USA

Primary construction material: wd

Case included?: box

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 C ] D

Back Scales: K A [ B S T CI ] D L

Notes: Polyphase Duplex; good condition; box too; prod. marks 55 on end of rule

References: http://www.mccoys-kecatalogs.com/KECollection/4088/ke4088-3_s1_3.htm

Date Acquired: 09/02/2012