Chicago: Vit-o-Net Mfg. Co., 1926. First edition. Slim 8vo, original pictorial self-wrappers, 31,  pages. Illus. Some staining to the wrappers; a very good copy. Item #18306
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 the head of the front wrapper and a dated ink stamp Jan. 6 1928 on the rear wrapper, with a few pencil notations to the front and rear wrapper.