USA. Proof 1 Dollar 2010 S, San Francisco, 14th President Franklin Pierce - PCGS PR 69 DCAM, KM 476, manganese brass plated copper (77% copper, 12% zinc, 1% other on pure copper core), 26,50 mm, weight 8,10 g., Designer: Susan Gamble, Charles L. Vickers / Don Everhart, Condition PCGS PR 69 DCAM, special dedicated PCGS label