An eccentric chuck of circular pattern, the heavy brass body with iron screw to fit a female-threaded mandrel, worm-and-wheel nose with iron male screw nose --5½in. diam. French, circa 1790
细节
An eccentric chuck of circular pattern, the heavy brass body with iron screw to fit a female-threaded mandrel, worm-and-wheel nose with iron male screw nose --5½in. diam. French, circa 1790