Two-Faced Politicians

Until 1999, Abe Lincoln was the only person to appear on both the front and back of the same United States coin (he’s just barely visible on the back of the penny, sitting in his memorial):

http://commons.wikimedia.org/wiki/File:2005-Penny-Uncirculated-Obverse-cropped.png

Now George Washington can claim the same honor with the release of New Jersey state quarter, whose reverse shows him crossing the Delaware River:

http://commons.wikimedia.org/wiki/File:2006_Quarter_Proof.png