HARTZ, Augustus (1843 ? 1929). Hartzism! Cleveland: Short & Forman Show Printers, ca. 1880. Large-format advertising brochure/herald bears a bust portrait of the ?magical autocrat? on the front wrap, and advertises his co-stars, Parker?s Canine Wonders, as well as White?s Sewing Machines. 8 pp. Large 4to. Chips around edges, old folds, minor toning; very good. Rare. One of three brothers who made their living as a conjurer, Gus Hartz and his brother Joseph Michael opened what is reported to be the first emporium in New York to deal exclusively in magic apparatus.