Vaudeville mind reading and kindred phenomena
A 1920 trade manual by stage magician David J. Lustig, published in Somerville, Massachusetts, explaining how vaudeville mind-reading and second-sight acts were actually performed. The line drawings are diagrams: a numbered head chart mapping signal positions, a coded card-table grid labelled with jack, queen and king, notched and punched disks keyed to card suits, and a wired concealment rig of headset, transmitter and floor plates \u2014 useful as schematic, annotated figures with hand-lettered callouts.
