Pocket Watches Winding Keys
Inventory Number：O1809005A,B,C,D,E,F,G,H,I,J,K,L,M,N,O
Circa 18th and 19th centuries, a collection of different shapes of winding keys with several materials.
These keys were used to wind and set the time of early pocket watches. This was usually done by put the keys onto winding-arbor or setting-arbor, after opening the caseback most of the time. And this winding mechanism was gradually replaced by keyless winding after the third quarter of 19th century.
