Did you know Stack’s Bowers Galleries and Sotheby’s achieved a world record price for the most valuable quarter eagle to be sold at auction and the most expensive 19th century U.S. gold coin ever sold at auction? The 1808 quarter eagle from the D. Brent Pogue Collection, Masterpieces of U.S. Coinage Part I, worth just $2.50 when minted, realized $2.35 million in Tuesday night’s sale.