- Subject
- Optical instruments
- Item type
- Object
- Provenance
- Not ascertained.
- Primary inscriptions
- Unsigned and undated.
- Dimensions
- Diameter: 95mm Height: 242mm Width: 97mm Depth: 20mm Weight: 65g
- Inventory No
- 28286
Description
Mahogany ring mounted on a copper alloy rod. Identical to inv. no. 13756.

