Hemmi, 258, 1958
Serial Number or Date Stamp: IL
|Country: JPN||Primary construction material: bb||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: LL0 LL00 K DF [ CF CIF CI C ] D R1 R2 L
Back Scales: LL01 LL02 LL03 [ T ST S C ] D LL3 LL2 LL1
Notes: Post 1460; case in very nice condition; owner Joseph A. Haertle, General Motors,co-author Computer Modeling in New Vehicle Design, Raymond G. Fischer and Joseph A. Haertle, SAE Transactions, Vol. 93, Section 4: 840772––841109 (1984), pp. 235-240.
Date Acquired: 08/01/2020