Microscope Accessory, by Ross?, London, Late 19th Century

Subject: Microscopy
Item type: Object
Makers: Ross
Provenance: Purchased from Dr. Reginald S. Clay with his collection. Part of item 26 in typescript list.
Primary inscriptions: '1/10 In' engraved on disc, and written in pencil 'Ross'.
Physical material: copper alloy; Glass; paint
Dimensions: Diameter: 24mm Height: 6mm Weight: 8g
Inventory No: 20323
Accession Number: 1944-1/part

Description

Copper alloy disc with screwed on tubular fitting which holds in the removable lens.