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Henry Pyefinch (c1739-1790), English maker of mathematical and optical instruments.
1753 Apprenticed to Francis Watkins.
Traded in London at the Golden Quadrant, Sun and Spectacles (1765), No. 67 Cornhill, between Bishopsgate Street and the Royal Exchange, 64 Cornhill (1765), 67 Cornhill (1772-82), 45 Cornhill (1782-91).
1790 Published 'The Pentagraph; Improved by Henry Pyefinch, Optician, Cornhill, London'. 8pp.
1791 'A Leasehold Estate, situate on the North Side of Cornhill in the City of London, consisting of a Messuage or Tenement, late in the Occupation of Henry Pyefinch, Optician, deceased,'