An American Blackington silver plated riding boot corkscrew:
An American Blackington silver plated riding boot corkscrew:

細節
An American Blackington silver plated riding boot corkscrew:
a Hasselbring corkscrew and caplifter with antler handle with silver collar;
and a Norwegian 1906 Patent Sharsten's patent pocket corkscrew and caplifter.
See Plate 7 (3)