An English Carlo Viarengo 1898 Patent No 10668 corkscrew,
An English Carlo Viarengo 1898 Patent No 10668 corkscrew,

細節
An English Carlo Viarengo 1898 Patent No 10668 corkscrew,
with oval brass handle (loose, some minor dents), marked on the shank C. Viarengo Patent, grooved wire helix.
See Plate 4