Master Key Systems by Hunt and Company

This is an original booklet that teaches playing card marking systems used to mark cards for cheating and magic purposes. It is described as, Complete treatise illustrating manner to detect and read all coded cards, factory marked, etc.” Discussions include how to spot for the different marking systems to make sure the cards in use are not marked. Sections include: Author’s Note, Factory Print Cards, Blue Star No. 999, Daisy, Nifty, Bee 67, sorts, Shading, Daub, Needles Pricks And Crimps, Not Alone On Bee Cards, Bicycle Cards, The League, The Angel Back, Wheel Back, The Acorn, The New Fan, The Expert, The Thistle, Cupid Back, The Safety Back, The Racer, Back 35, Edge Or Margin Work, and Border Trim. Published by Hunt & Company