Telescope

This achromatic telescope has a tapering barrel covered in leather. There are two brass draw tubes and brass fittings that include a pivoted eyepiece cover. The objective lens cap is now missing. The maker’s name appears on the smaller draw tube as ‘Troughton & Simms, / London’, while some roughly inscribed roman numerals on hidden parts appear to be part of the manufacturing process.

Object Details

ID: NAV1643
Collection: Astronomical and navigational instruments
Type: Pocket telescope
Display location: Not on display
Creator: Troughton & Simms
Date made: circa 1830
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 177 mm; Diameter: 45 mm
Parts: Telescope