- Subject
- Optical instruments
- Item type
- Object
- Primary inscriptions
- Engraved on cover ' R A S./S./No.30'
- Dimensions
- Height: 35mm Width: 25mm
- Inventory No
- 19740
Description
Glass magnifying lens mounted in a horn case. The lens is mounted on copper alloy pins and folds back on itself within the case.
Associated with Reflecting Circle, by Troughton, London, c. 1800.
