Handcuff

Definition and stakes

Albert A. Hopkins,  Magic, Stage Illusions and Scientific Diversions…

“ As a final test, the performer comes out of the cabinet holding the handcuffs in his hand, removed from the wrist but locked.
The explanation of this trick is very simple, but, like many simple tricks, very mysterious. There are only a few styles of handcuffs made in this country, and all that a “medium” has to do is to secure the proper key for each style, which keys are concealed about the person, and by the aid of fingers and teeth the proper key can be fitted to the handcuffs. In some types of handcuffs it is impossible [54] to get the fingers to the key-hole.
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Source: Gutenberg

Portrait of Irvin S. Cobb Irvin S. Cobb,  My Story That I Like Best

“ He didn't mop his face, though. He unrolled the handkerchief slowly, as if it contained something immensely fragile and valuable, and then, thrusting it back in his pocket, he faced Mr. Trimm. He was carrying in his hands a pair of handcuffs that hung open-jawed. The jaws had little notches in them, like teeth that could bite. ”
Source: Gutenberg

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