细节
A [?] Patent Model of a stamping or piercing engine/machine,
unsigned/unmarked, operated by wheel, crank and levers, the brass frame on rack trackwork, 8¼in. (21cm.) long; and another similar with wood frame
See illustration
unsigned/unmarked, operated by wheel, crank and levers, the brass frame on rack trackwork, 8¼in. (21cm.) long; and another similar with wood frame
See illustration