Parautoptic lock, by Day & Newell, Manhattan, New York, New York State, United States of America, 1851. Exhibited at the 1851 Great Exhibition, London, England. Despite many attempts, there is no record that this lock has ever been picked.
Details
- Category:
- Locks & Fastenings
- Object Number:
- 1970-349/1
- Materials:
- steel (metal), brass (copper, zinc alloy) and copper (alloy)
- type:
- lock
- credit:
- Chubb and Son's Lock and Safe Co.
