F.182 Data Sheet MJS-p-0019

K&E, 4092-3, 1923

Serial Number or Date Stamp: 64405

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

General Description: Advanced linear log-log duplex slide rule

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

Front Scales: DF [ CF CIF CI C ] D L K

Back Scales: LL0 A [ B S T C ] LL3 LL2 LL1

Notes: Log Log Duplex; serif type; all-glass cursor; rare – K scale on bottom below L scale; Doc McClain, Joliet, 1925, and Haddie Langdon, Notre Dame; stitched case

References: http://sphere.bc.ca/test/ke/320-k+e_date2.jpg; http://www.gizmology.net/sliderules_ke.htm

Date Acquired: 09/02/2012