Non-achomatic prospect glass telescope

Made:
1790-1829 in London
maker:
John Bleuler
Non-achomatic prospect glass telescope

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Non-achomatic prospect glass telescope
Science Museum Group
© The Board of Trustees of the Science Museum

Non-achomatic prospect glass telescope, gilded brass One draw tube with ivory covering, by John Bleuler, London, England, 1790-1829

Details

Category:
Optics
Object Number:
1917-46
Materials:
brass (copper, zinc alloy), ivory, glass and gold plated (gilded)
Measurements:
overall: 60 mm 46 mm, .056kg
type:
opera glass, telescope - galilean and telescope - refracting
credit:
Court, Thomas Henry