Double image wedge micrometer by Dollond

Double image wedge micrometer by Dollond, box sold ScM1806/83/1

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Double image wedge micrometer by Dollond, box sold ScM1806/83/1
Science Museum Group
© The Board of Trustees of the Science Museum

Double image wedge micrometer by Dollond, box sold ScM1806/83/1

Details

Category:
Astronomy
Object Number:
1906-64
Materials:
metal
type:
split-lens eyepiece micrometer and instrument component
credit:
J.C. Stevens Auction House