K&E, 4092-3, 1933
Serial Number or Date Stamp: 441408
|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: K DF [ CF CIF CI C ] D L
Back Scales: LL0 A [ B S T C ] LL3 LL2 LL1
Notes: Log Log Duplex; improved metal framed cursor; stitched case; J.A.B.
Date Acquired: 09/02/2012