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Microscope Objective with Variable Aperture Disc, Late 19th Century

Inventory Number 41006

Acknowledgement: © History of Science Museum, University of Oxford, inv.41006

Subject
Microscopy
Item type
Object
Provenance
Purchased from Dr. Reginald S. Clay with his collection. Part of item 14 on typescript list.
Primary inscriptions
'465' engraved on top of fitting.
Dimensions
Diameter: 60mm Height: 110mm Width: 70mm Depth: 60mm Weight: 184g
Inventory No
41006
Accession Number
1944-1/part

Description

Copper alloy disc with fine focusing for objective and two discs. one of variable apertures and the other with variable discs for shading. The lens which covers the aperture is removable and the barrel of this lens is encircled by three ridged rings. Stored in black Japanned tin box.

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