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Mirror cell for the Great Melbourne Telescope speculum Size:L: 100 x 80cm James and John Knapton

SKU 73010149930
4.4
USD17.95 USD60.95

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Description

James and John Knapton

View of the Pantheon and adjoining premises on Oxford Street

Monument of William Herbert

Jamaican Alexander Hartley and English Tom Brown

Mirror cell for the Great Melbourne Telescope speculum Size:L: 100 x 80cm James and John KnaptonStudy of the system of 'equilibrated levers' made by Thomas Grubb (1800 1878), devised for the Armagh Cassegrain telescope and applied to the Great Melbourne Telescope's twin speculum mirrors. Original: albumen print. ca. 1867

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