F.225 Data Sheet MJS-p-0237

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K&E, N4100, 1938

Serial Number or Date Stamp: 694091

Country: USA

Primary construction material: wd

Case included?: yes

General Description: Specialty linear stadia slide rule

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

Front Scales: in /| R [ H HC V ] A || cm

Back Scales: [ C B ]

Notes: Stadia rule, for use in surveying; instructions on back; metal rimmed cursor

References: https://www.mccoys-kecatalogs.com/KEModels/ke4100family.htm

Date Acquired: 01/05/2022