Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Pocket Watch Slide Rules
SPC / Mechanical Engineer Large
Scientific Publishing Company
UK
Metal/glass/paper
1907-1910
Ø 6.4 cm
Basic Calculations

Notes: The largest of the ME calculators is significant in slide rule history because it precedes the later well-known Fowler calculators. It may or may not be Swiss made.


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