3-wheel keyless combination lock, model M6730 MP, by Sargent and Greenleaf, New York, U.S. A., with combination changing key, c.1949
Details
- Category:
- Locks & Fastenings
- Object Number:
- 1960-228
- Materials:
- brass (copper, zinc alloy) and steel (metal)
- type:
- combination locks
- credit:
- Stanton, W H