Ruling engine for producing stage micrometers

Made:
1840
Ruling engine for producing stage micrometers, calibrated in 10

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Ruling engine for producing stage micrometers, calibrated in 10
Science Museum Group
© The Board of Trustees of the Science Museum

Ruling engine for producing stage micrometers, calibrated in 10,000 & 12,000 of an inch, c.1840

Details

Category:
Microscopes
Object Number:
1983-426
type:
engines
credit:
Delehar, P.