Safety lamp, Clanny, Craig and Bidder's magnetic lock, from Mr. Bidder. Maker: R. Sharp, Usworth, marking: maker's name, 1869-1872 and diagram
Details
- Category:
- Mining & Ore Dressing
- Object Number:
- 1872-148
- type:
- safety lamps
- credit:
- Geological Museum (Jermyn St.)
