- Subject
- Electronic instruments
- Item type
- Object
- Makers
- Yates & Son
- Object type
- Telegraphy equipment
- Dimensions
- Height: 232mm Width: 234mm Depth: 154mm Weight: 1.7kg
- Inventory No
- 58562
Description
Metal wheel-structure supported by a mechanism involving springs. Encased in an enclosure with a wooden base and corners and glass sides.

