|Title||Manual: K&E Modern Polyphase Slide Rule Manual. No. 68 2061 (old 4187Y). K&E, N.Y. & Hoboken, ca. 1962-1963.|
|Object Name||Manual, Training|
|Collection||Keuffel & Esser Company Collection|
|Credit||Gift of George Edler.|
|Scope & Content||
K&E Slide Rule Manual; Modern Polyphase. By Lyman M. Kells, Willis F. Kern & James R. Bland. Manual No. 68 2061 (Old No. 4187Y.) Published by Keuffel & Esser, New York and Hoboken, no date, circa 1962-1963. (Copyright 1952.)
Softcover, 5-1/4" x 8" high, 92 pp.
Even though the text is copyrighted 1952, the "Modern Polyphase" name was first used for a group of slide rules in 1962 along with the stock number 68 2061 for this manual. This preface states this "manual has been written for study without the aid of a teacher." The slide rule model numbers covered by the instructions are not named, but it would have been for the 68 1581 (old number 4161-1 - introduced in 1952 and thus the 1952 copyright date) and the 68-1576 (old number 4161-3 - introduced in 1954). It may also have applied to the 68-1586. The 4161 group were Mannheim type slide rules.
These materials are from the personal papers of employee George Edler who worked for K&E from 1954-1984.
|Year Range from||1962.0|
|Year Range to||1963.0|
Keuffel & Esser Co.
K & E
Business & Commerce