Trifilar eyepiece micrometer in brass

Trifilar eyepiece micrometer in brass, French, 18th century

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Trifilar eyepiece micrometer in brass, French, 18th century
Science Museum Group
© The Board of Trustees of the Science Museum

Trifilar eyepiece micrometer in brass, French, 18th century

Details

Category:
Astronomy
Object Number:
1986-377
type:
filar micrometer and instrument component
credit:
Turner, A.