Kellar, Harry (Heinrich Keller). Kellar’s New Wonder. Oh! Cincinnati: Strobridge Litho., 1897. Magnificent and bold design uses two images to explain what both Kellar and his successor Thurston would come to call the Oh! Chair illusion. Essentially, the effect involved the vanish of a man under test conditions. The poster is somewhat dishonest about aspects of the prop’s actual appearance, but on stage, the illusion was no less surprising or marvelous. 40 1/2 x 83 1/2". Restoration and over-coloring at edges, minor restoration in image; B+. Rare.
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