PHILADELPHIA – United States Mint Director Ed Moy opened an exhibit today detailing the development of the 2009 Ultra High Relief Double Eagle Gold Coin, a modern version of Augustus Saint-Gaudens’ original 1907 Double Eagle $20 gold piece.  The exhibit, previewed at the World’s Fair of Money® last year in Baltimore, is on display at the United States Mint at Philadelphia.  Immediately following the ceremony, reporters and the media got a behind-the-scenes look at coin design using 21st century digital technology used to make the coin possible.