The Power of Electro-Magnetism [self-wrapper title].
Chicago: Vit-o-Net Mfg. Co., 1926. First edition. Slim 8vo, original pictorial self-wrappers, 31, [1] pages. Illus. Detailed promotional pamphlet for Vit-o-Net electric magnetic blanket, with numerous vague promises of improved health and a proven track record; includes some detail on the technology of creating electromagnets. Ink autograph note “1929” at..... More