213

Left: A folding double helix marked S PATT and with the bell trademark of Brookes

and Crookes, Sheffield. The double helix is James Wilson's British Patent 898 of March

3, 1877.

Center: A picnic corkscrew marked LB PARIS (Leboullanger 1846-1889).

Right: Wood handle direct pull corkscrew with archimedean worm marked J. J

.

Courtesy of Jens Arnbjerg