Massey's patent modified lever escapement with large balance wheel beating seconds, centre-seconds, no. 11197, by Litherland, Davies and Co., Liverpool, England, 1795-1805.
Details
- Category:
- Time Measurement
- Object Number:
- 1920-557
- Materials:
- brass (copper, zinc alloy) and steel (metal)
- Measurements:
-
overall: 13 mm 52 mm, .055 kg
- credit:
- On loan from Bruno Roberts