Brass spyglass with 2 eyepiece powers

Made:
1700-1799 in London
maker:
Dollond family
Brass spyglass (outer cover missing) with 2 eyepiece powers by

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Brass spyglass (outer cover missing) with 2 eyepiece powers by
Science Museum Group
© The Board of Trustees of the Science Museum

Brass spyglass (outer cover missing) with 2 eyepiece powers by Dollond family, London, 1700-1799

Details

Category:
Optics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
1983-335
Materials:
brass (copper, zinc alloy) and glass
Measurements:
overall: 113 mm 45 mm, .1818kg
type:
telescope - terrestrial, telescope - galilean and telescope - refracting
credit:
Wellcome Trust