F.59 Data Sheet MJS-p-0412

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Dietzgen, 1765, 1898-1902

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 28.1898 Chicago & NY in well single slit; no model number on rule; very old box, no lid, 1765/Chicago/NY

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

Date Acquired: 03/14/2026