Welcome to Nostomania Coins. New! The 100 Most Valuable Coins. Price Guide Values, Census, Demand, Sales History. My Lists Manage your collection, wantlist, or for sale list. My Finder Examine recent wantlist matches. My Deals Check sales or purchases in progress. Browse Browse items for sale. Discuss topics of interest with other users on the Forums. Need help grading your coins? View our coin grading guide.