Circular slide rule in pocket watch case by Scientific Publishing Company

Made:
1900-1920 in Manchester
Circular slide rule in pocket watch casae by Scientific

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Circular slide rule in pocket watch casae by Scientific
Science Museum Group
© The Board of Trustees of the Science Museum

Circular slide rule in pocket watch case by Scientific Publishing Company, Manchester.

Details

Category:
Mathematics
Object Number:
1998-471
Materials:
steel, glass and complete
Measurements:
overall: 15 x 70 x 90 mm
type:
circular slide rule
credit:
Mr J.C. Michie