Oblique Microscope Illuminator, by Nachet, Paris, Late 19th Century

Inventory Number 81068

Acknowledgement: © History of Science Museum, University of Oxford, inv.81068

Subject: Microscopy
Item type: Object
Makers: Nachet
Provenance: Purchased from Dr. Reginald S. Clay with his collection. Part of item 14 in typescript list.
Primary inscriptions: Scratched on top 'Nachet Paris', and also on the side near the screw thread. '941' engraved on the side of the tube.
Physical material: copper alloy; Glass; paint
Dimensions: Diameter: 36mm Height: 43mm Weight: 36g
Inventory No: 81068
Accession Number: 1944-1/part

Copper alloy tube with special cut prism with bead surface in rectangular aperture. Stored in black Japanned tin box.