Original creation for magicians hitherto kept up his sleeve (1920)
Waller, Charles, 1879-1960, Henry, James L · Los Angeles : F.G. Thayer · leaf 59
up His Sleeve filling its function, as a mask for the contents of the chambers, it lies along the shorter ribs, with its points to the handle. When, however, the production has happened, it rests against the cover of umbrella, between the points where the short ribs join the long ones, and the edge… … The basis for each flap is a V-shaped wire frame as shown in Figure 4. It will be noticed that each end of the wire is twisted to form two eyelets, separated by about one inch. Each frame is attached to the long ribs of the umbrella by pivots passing through the innermost of these eyelets. As it is…
Magic tricks
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.