Oblique Illumination Attachment 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. Item 11 of typescript list.
Primary inscriptions: 'Ross/London'.
Physical material: Glass; copper alloy; metal; paint
Dimensions: Diameter: 70mm Height: 110mm Weight: 268g
Inventory No: 91908
Accession Number: 1944-1/part

Description

Copper alloy barrel with glass top lens, internal condenser and sliding apertures at the side controlled by two metal arms.