F.217 Data Sheet MJS-p-0252

K&E, N4053-3F, 1928

Serial Number or Date Stamp: 258978

Country: USA Primary construction material: wd Case included?: yes

General Description: Basic linear polyphase slide rule

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

Front Scales: in /| A [ B CI C ] D K || cm

Back Scales: [ S L T ]

Notes: Polyphase Mannheim with very fine markings; rare; all glass cursor

References: https://www.mccoys-kecatalogs.com/KEModels/ke4053family.htm

Date Acquired: 04/02/2022