Hoffmann (Professor), 1839-1919., Plate, Adrian, inscriber., Harry Houdini Collection (Library of Congress) · New York : E.P. Dutton & Co. ; London : George Routledge & Sons, 1904. · leaf 173
Later Magic 145 THE AMERICAN VANISHER. Another appliance for the same purpose is known as the ‘““American’’ vanisher. (See Fig. 102.) This isa flat metal ring one and one half inches in diameter, and not unlike a key-ring, which indeed it resembles a … good deal in principle. At one part of its circumfer- ence it has a three-quarter inch opening, a, the ends on either side being slightly curled back. Across this open- ing lies a piece of clock-spring, rivetted at one end, b. The other end, c¢, is free, but presses firmly against the innér…