F.180 Data Sheet MJS-p-0187

K&E, 4092-3, 1922

Serial Number or Date Stamp: 6742

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

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

Notes: Log Log Duplex; serif; pre-K-Scale, early first-year serial number; mahogany sides; prod marks 44

References: https://osgalleries.org/journal/displayarticle.cgi?match=10.2/V10.2P52.pdf

Date Acquired: 04/26/2021