This lot is closed for bidding. Bidding ended on 5/19/2018
Adjustable Brass Card Edge Notcher. Denver: Mason & Co. Makers, ca. 1890. Used to secretly prepare faro cards. Rare. 4 ¼ x 3”. Excellent. A photo of this device appears on the back cover of “Invention & Technology” Summer, 1998, Volume 14/Number 1. Inside is an article by Gary R. Brown “The Science of Cheating at Cards” along with other photos from the Rosenberger collection.