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Inventory no. 20020 - Internal Exhibition Label Text 'English Telescopes'

Gregorian reflecting telescope, English, c.1710

This is said to be the earliest surviving example of a Gregorian telescope, but there are several others of the same design. It is very close to the illustration of the Gregorian in Smith's Opticks of 1710 and was in the collection of Charles Boyle, fourth Earl of Orrery (1676-1731).

On loan from Christ Church.

Inventory no. 20020

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