http://www.dig4coins.com/news/latest-news/10-eagle-coin-purchased-for-5-million.html

A private collector bought a rare $10 gold coin, minted as a diplomatic gift for United States President Andrew Jackson when he was on his trade missions to Asia. The collector was brave enough to pay $5 million for the rare coin.Although being dated 1804, the Eagle coin was, in fact, struck later in 1834 at the Philadelphia Mint. It represents one of four specials coins that were able to survive till nowadays.