One old used barrel complete with mainspring, winder pin and friction rim in good condition for Roskopf pocket watch (19" I think)
Barrel dimensions:
- main spring barrel external diameter 25,7 mm x height 4,2 mm
- outside diameter of barrel teeth 27,2 mm
- small pignon diameter / second gear diameter 5,3 / 16 mm of the barrel cover
- winder pin lenght 10,6 mm
no factory marching and serial number
cleaning and polishing is required
see photographs by enlargement