F.181 Data Sheet MJS-p-0259

K&E, 4092-3, 1923

Serial Number or Date Stamp: 64163

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

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; near-last of early scale set for 4092-3, just before transition rule; laminated edges, serif fonts; initials W.G.B.

References: https://www.mccoys-kecatalogs.com/KEModels/ke4092-3family.htm

Date Acquired: 05/10/2022