F.55 Data Sheet MJS-p-0245

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Dietzgen, 1765, 1902-1912

Serial Number or Date Stamp:

Country: USA

Primary construction material: wd

Case included?: yes

General Description: Basic linear Mannheim slide rule

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

Front Scales: in /| A [ B C ] D || cm

Back Scales: [ S L T ]

Notes: Mack Improved, Pat.June 28.1893; nice box, excellent condition; owner J. Ballard Smith

References: https://osgalleries.org/makers/reference/BabcockDietzgenMatrix.pdf

Date Acquired: 02/14/2022