A German Friedrich Kummer 1880 Patent No.14531 steel double action corkscrew with turned wood hand, indistinctly marked with trademark and DRP, overall corrosion, centre worm. See Plate 14

细节
A German Friedrich Kummer 1880 Patent No.14531 steel double action corkscrew
with turned wood hand, indistinctly marked with trademark and DRP, overall corrosion, centre worm.
See Plate 14