- Subject
- Microscopy
- Item type
- Object
- Provenance
- No record of acquisition.
- Primary inscriptions
- Unsigned.
- Physical material
- Brass.
- Dimensions
- Diameter: 27mm Height: 41mm
- Inventory No
- 43741
- Accession Number
- 1970-101/part
Description
'Acorn' or 'flea' type. Identical to RMS 306 but small lens and pin missing.

