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History of Science Museum

4 In. Objective in Can, by Ross, London, 1867

Inventory Number 75086


Acknowledgement: © History of Science Museum, University of Oxford, inv.75086

Subject
Microscopy
Item type
Object
Makers
? Ross
Provenance
Deposited by the Royal Microscopical Society with their collection. Presented by Thomas Ross, 13 November 1867
Primary inscriptions
.1: "Ross, London, 4 In." .2: "4 In. Ross, London"
Object type
Microscope accessory
Inventory No
75086
Accession Number
1970-101/part

Description

A long-focus lens measuring 4 inches, manufactured by Ross. The lens is set in a copper alloy ring and accessed by removing a threaded blackened eyecup. The lens is stored in a copper alloy can with a threaded lid. The lid is engraved with the lens' size and manufacturer. The lens was published in QJMS (1868) 58.