Hannigan's are large buyers and sellers of early american coins and tokens. They also one of the largest in the world in large cents. Recently Hannigan's rare coins made history for being the first Person or dealer and to buy and sell a Copper coin or penny for over 1 million. This coin sold for 1.265 million and came from the Dan Holmes sale Goldberg auction. They have over a 2 million in inventory and attend all major coin auctions. Retaill and Wholesale business.