An English late 18th/early 19th century steel finger ring picnic corkscrew,
An English late 18th/early 19th century steel finger ring picnic corkscrew,

細節
An English late 18th/early 19th century steel finger ring picnic corkscrew,
with faceted loop, double knop shank and turned sheath, wire helix - 11 cm.
See Front Cover and Plate 3