Four draw telescope Thomas Rubergall

This telescope measures 56.5 cms when fully open and 17 cms when closed and has a main lens of 3.5 cms. The eye-piece has a dust slider and the first draw is signed,'Tho's Rubergall, Optician to their Majesties, 24 Coventry St, London'. It gives a good clear image with damage free lenses.

Rubergall worked 1800 - 1854.

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