F.178 Data Sheet MJS-p-0179

K&E, 4088-5, c.1920

Serial Number or Date Stamp:

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

General Description: Basic linear polyphase duplex 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 CIF C ] D

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

Notes: Polyphase Duplex; no serial number, but improved cursor; prod. marks 64 on end; laminated edges; used by draftsman for a steel company

References: https://www.sliderulemuseum.com/KE_Standard.htm

Date Acquired: 02/11/2021