Portable telescope

This non-achromatic telescope was made in France in the late 18th century. It has a green rayskin (shagreen) barrel and a single green vellum draw tube. The lenses are set in lignum vitae with silver mounts. There is a black stop line near the eyepiece end of the draw tube.

The maker's name is stamped onto the draw tube: ‘SAYDE / OPTICIEN DU ROY / A PARIS’.

Object Details

ID: NAV1618
Collection: Astronomical and navigational instruments
Type: Portable telescope
Display location: Not on display
Creator: Sayde
Date made: circa 1780
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 645 mm; Diameter: 45 mm
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