Open-spring rheostat, 1850-1910
- Made:
- 1850-1910
Open-spring rheostat, 1850-1910
Details
- Category:
- Therapeutics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A603004
- Materials:
- frame, iron, board, mahogany, coils, iron and insulators, pottery
- type:
- rheostats
