F.144 Data Sheet MJS-p-0306

K&E, 4058, c.1915

Serial Number or Date Stamp:

Country: USA Primary construction material: wd Case included?: no

General Description: Basic linear beginner/student Mannheim slide rule

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

Front Scales: A [ B C ] D

Back Scales: [ S L T ]

Notes: very early 4058; no cursor; old table on back; marked 4058 on front left; no indication of Student/Beginner; no pi mark; no patent info; prod. mark 524 on end; owner E.P. McLaughlin

References: http://www.mccoys-kecatalogs.com/KECollection/4058/ke4058familyrules.htm

Date Acquired: 06/03/2023