SOLD – Nine draw: Adam’s New Patent Portable Telescope – 60 Fleet St., London.

SOLD – Nine draw: Adam’s New Patent Portable Telescope – 60 Fleet St., London.

Sold

Circa

1760

Country of manufacture

UK and Ireland

Categories: Telescopes, Telescopes - Refracting

Description

SOLD – A very good nine draw brass telescope, signed on the first draw, ‘Adam’s New Patent Portable Telescope. 60 Fleet Strt., London’. With lens cap, dust slider to the eye piece and 1 & 7/8″ (49 mm) non – achromatic (Galilean type) objective lens.

Small knock to the eye piece flange and objective cell; all lenses are clear and undamaged, the draws pull nice and smoothly and are firm. The telescope gives an excellent image when view through. Each draw tube collar is finished with rope effect knurling.

Measures 18 cms when closed and 108.5 cms fully drawn.

By George Adams the elder, 60 Fleet Street, London ( 1734 – 1772 ). An almost identical, silver plated telescope is held in the Science Museum. His son, Dudley Adams, 60 Fleet St, (worked 1788 – 1817) also advertised ‘Adams’s New Portable Patent Telescope’ but this refers to a patent obtained on 30th May 1800, by Dudley Adams, for which a new form of spring fitted inside the draw tubes of the telescope was to keep them more steady.

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