F.137 Data Sheet MJS-p-0109

K&E, 4041, 1915-1921

Serial Number or Date Stamp:

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

General Description: Basic linear Mannheim 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 C ] D || cm

Back Scales: [ S L T ]

Notes: Mannheim; Rule in good condition; prod. mark 207 on end of rule

References: http://www.mccoys-kecatalogs.com/KECollection/4041/ke4041familyrules.htm

Date Acquired: 08/01/2020