Massey patent lever escapement pocket watch mechanism
1795-1805
Pocket Watch Mechanism, 1790-1805
1790-1805
Pocket Watch mechanism
1778
Roskell's watch curb escapement
1800-1830
Movement with club-footed verge escapement
Pocket Watch Mechanism
1765-1775
Pocket watch mechanism
1750-1805
Movement with winding mechanism operated by opening and closing case
circa 1870
Verge by G. Yonge, 1800
circa 1800
Flat movement with horizontal escapement no. 23093
Geneva lever watch with dial
Model of Duplex escapement, with mahogany base and glass dome
Verge with snail and hare indicator
1801-1830