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Object Record

Catalog Number 11.0003.024
Title Pickett & Eckel Inc. Power Log Exponential Slide Rule, Model N 3-ES
Description Yellow aluminum rule with center slider. Metal brackets on the ends. Clear plastic indicator. Marked in black and red. "Power Log Exponential Log Log Dual Base." "321" and "322", "Chicago, 3, ILL, USA."
Object Name Rule, Slide
Date c. 1960
Collection Joseph E. Rall Collection
Accession number 11.0003
Caption Pickett & Eckel Inc. Power Log Exponential Slide Rule, Model N 3-ES
Catalog date 2011-11-30
Catalog type History
Provenance Dr. Joseph E. Rall served as Scientific Director of NIAMD and NIDDK, and for the NIH. He became the first NIH Deputy Director of Intramural Research. This rule has 27-31 scales and the number of digits appropriate to the scales is shown. There are two full length square root scales and three full length cube root scales. The lettering enables the log-log scales to be doubled. The "ES" in the name means "eye saver yellow" and the "N" means "new" with an improved cursor design and square corners. Pickett dropped the Eckel name in 1949-50, but the logo dates from 1958-1962.
Year Range from 1950
Year Range to 1962
Number of images 1
Updated 2014-03-18
Condition Good
Organizations NIH; NIAMD (National Institute of Arthritis and Metabolic Diseases) (1950-1
NIH; NIAMD, Clinical Endrocrinology Branch
NIH; NIDDK (National Institute for Diabetes Digestive and Kidney Disease)
NIH; OD (Office of the Director)
NIH; OD, OIR (Office of Intramural Research)
People Rall, Joseph E.