Refracting Telescope, by John Marshall, London, c. 1715
|Inventory Number:|| 29666|
|Object Type:|| |
|Place Created:|| London England United Kingdom Europe
|Brief Description:||English 9' refracting telescope by John Marshall, London. Undated; c.1715.|
Pasteboard tubes covered with vellum tooled in gold; lignum vitae lens mounts.
The effective aperture of the objective is 7/8".
The designs of the tools used for decorating this instrument are often found on Marshall's instruments. Their style is characteristic of the period 1700-1725. The coiled snake motif has not been recorded on bookbindings, and it is likely that body-tubes for telescopes and microscopes were made by a specialist, who sold them to the optical instrument makers who added the lenses.
|Primary Inscriptions:||Signed twice around body tube at objective end: "IOHN:MARSHALL:LVDGATE:STREET:LONDON"|
|Provenance:||Lent by Christ Church, Oxford in 1924.|
|Collection Group:||Orrery Collection|