Vaudeville ventriloquism; a practical treatise on the art of ventriloquism (1920)
Lustig, David J, Doidge, Robert William, joint author · Somerville, Mass., R.W. Doidge · leaf 32
sistant also manipulates a telegrapher's key controlling an electromag- net which causes the manikin's jaw to move. By the use of additional electromagnets and keys, the manikin's head can be made to turn from side to side, and the arm be raised in a salute. The Magnavox Co. 2701 East Fourteenth… … 29
Ventriloquism
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
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