The humorous magician unmasked, or, A full explanation of the principal and most interesting performances of legerdemain : as exhibited by Monsieur Adrian and other performers, which of late has excited so much curiosity in the public mind, in Philadelphia and other cities of the United States and elsewhere : with amusing dialogues, and original and true Yankee stories
An 1836 Philadelphia magic handbook by A. B. Engstrom, explaining conjuring tricks performed by Monsieur Adrian and others for a general American reading public. The pictures are plain line diagrams of boxes, panels and a cup, with lettered parts and numbered lids, showing how concealed compartments and mechanisms were arranged. A designer could take from them the clarity of simple wireframe box drawings and the use of letter labels as a graphic device.
