Modern 35mm film copies of original glass lantern slides used by Houdini circa 1922-26 to illustrate his lecture on fraudulent spiritualism, presented in theaters until his death. This set also includes other slides not from the lecture. 63 slides copied on Kodachrome Professional film. Likely copied personally by Bill McIlhany, who owned one of the original sets of glass slides. (See Arthur Moses “Houdini Speaks Out” 2007.) Condition: Excellent. In plastic slide storage box.