Resistance box
Resistance box, for Ediswan Pointolite Lamp, by Edison Swan Electric Co. Ltd., London, England, 1908-1916
- Materials:
- bakelite , brass (copper, zinc alloy) , copper (alloy) , steel (metal) , cotton (fibre) and ceramic (unspecified)
- Object Number:
- 1930-301/1/1
- type:
- resistance box