F.228 Data Sheet MJS-p-0074

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K&E, N4096, 1935

Serial Number or Date Stamp: 509054

Country: USA

Primary construction material: wd

Case included?: no

General Description: Basic linear merchant polyphase slide rule

Length of 1 decade = 20 in, and overall scale length = 20 in. The largest physical dimension is 20 in.

Front Scales: DF [ CF CI C ] D

Back Scales:

Notes: Merchants Desk Rule with heavy legs, exceptional condition; no box

References: http://www.mccoys-kecatalogs.com/keserialnumbers/Dating-2.htm

Date Acquired: 07/19/2020