NGC Certifies 2010-P Yellowstone 5 Ounce Error

  Image courtesy of NGC July 29, 2011—NGC has discovered what may be the first mint error in the America the Beautiful five ounce series. The coin, a 2010-P Yellowstone, has a matte Specimen finish on the Washington side and a brilliant, lustrous finish on the other. This mint error appears to be unique at […]