F.149 Data Sheet MJS-p-0248

K&E, 4041, 1904

Serial Number or Date Stamp:

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

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 < cm >

Back Scales: [ S L T ]

Notes: Very early 4041 Mannheim; mahogany; no model number; sub-numbered divisions; Pat. June 5 1900; fine divisions on SLT; 1/16 division on in scale; marks 87 on end; similar to American described in JOS 10.2p59; owner George L. Cooper; + initials DEH

References: JOS 10.2p59 (2001); https://www.sliderulemuseum.com/KE_Standard.htm

Date Acquired: 02/25/2022