The ferrotype of Abraham Lincoln is shown ahead of an auction at the Pennsylvania Convention Center, Wednesday, Sept. 18, 2013, in Philadelphia. A highly prized collection of U.S. political

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The ferrotype of Abraham Lincoln is shown ahead of an auction at the Pennsylvania Convention Center, Wednesday, Sept. 18, 2013, in Philadelphia. A highly prized collection of U.S. political memorabilia has gone up for auction. Among the items for sale are unusual ferrotypes of Abraham Lincoln. Those are essentially the forerunners of today's campaign buttons. Auction house Stack's Bowers Galleries is putting on the block more than 2,000 pieces from the John J. Ford Jr. Collection.(AP Photo/Matt Rourke) less 

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Associated Press
Thu, Sep 19, 2013 7:31 PM EDT