Did you know that Stack’s Bowers Galleries realized another record breaking price when it sold the rarest and most valuable U.S. nickel at their official auction of the ANA World’s Fair of Money in Philadelphia? In front of a standing-room only crowd with auctioneer Melissa Karstedt at the podium, the finest known 1913 Liberty Head nickel brought $4,560,000, becoming one of the five most valuable coins sold at auction. In addition, it now ranks as the most valuable non-precious metal coin ever sold.