Telescope built by Edward Troughton

Telescope built by Edward Troughton.. Equatorial instrument (telescope) at Armagh made by Edward Troughton. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820

Armagh Cyclopedia Dictionary Equatorial Farey Hurst Longman Lowry Orme Rees Telescope Troughton

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