Article Photos: U.S. Mint tests new metal coins 6/7

This undated photo provided on Wednesday, Dec. 19, 2012 by the U.S. Mint in Philadelphia shows is a bonneted Martha Washington on a nonsense test piece.  The Mint has been testing different materials to find less expensive ways to make coins. (AP Photo/U.S. Mint) ORG XMIT: PX201