Naval telescope

This is a hand-held terrestrial achromatic telescope with a single draw tube. It has a tapering barrel and brass fittings, including an objective lens cap (now damaged). The eyepiece assembly is missing.

An inscription on the draw tube indicates that it was made by Jesse Ramsden, one of London’s leading scientific instrument makers of the 18th century.

Object Details

ID: NAV1484
Collection: Astronomical and navigational instruments
Type: Naval telescope
Display location: Not on display
Creator: Ramsden, Jesse
Date made: circa 1790
People: Holliday, Michael
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 950 mm; Diameter: 62 mm
Parts: Naval telescope
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