F.255 Data Sheet MJS-p-0294

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Palmer, Palmer’s Pocket Scale, 1845

Serial Number or Date Stamp:

Country: USA

Primary construction material: pp

Case included?: yes

General Description: Early circular basic slide rule

Length of 1 decade = 10 in, and overall scale length = 10 in. The largest physical dimension is 3 in.

Front Scales: D [ C ]

Back Scales:

Notes: Pocket-sized book, 48 pages, with small Palmer Scale on inside back cover; companion to Palmer’s Computing Scale; weathered and worn

References: Cajori, History of the Logarithmic Slide rule, p61 (1909); JOS 3.1 p9; JOS 4.1 p5

Date Acquired: 03/06/2023