1955-59 Set of Professional Accident Revenue Die Proofs, with 7 different coloured die proofs, showing the die number just above the design, each affixed to seven large printer's index cards. Printed by the American Bank Note Company, the cards have many markings including "INDEX COPY" as well as die numbers, etc. A rare group, all scanned online. Rsv. $180. (Image)

Est $ 250