Dark red solar filter in threaded eyepiece mount

Made:: 1800-1850

Dark red solar filter in threaded eyepiece mount
Science Museum Group
© The Board of Trustees of the Science Museum

Details

Category:: King George III

Object Number:: 1927-1542

Materials:: brass and glass

Measurements:: diameter 42 mm
thickness 10 mm

type:: filter

credit:: King’s College London

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Dark red solar filter in threaded eyepiece mount

Details

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