细节
A miner's drill
with ratchet-action screw feed, reciprocating pump for lubrication and iron and bronze construction with handwheel -- 51in. long; a large shell auger -- 6in. diam.; an iron swivelling drill press; and a blacksmith's leg-vice with scroll hinge-finial (4)
with ratchet-action screw feed, reciprocating pump for lubrication and iron and bronze construction with handwheel -- 51in. long; a large shell auger -- 6in. diam.; an iron swivelling drill press; and a blacksmith's leg-vice with scroll hinge-finial (4)