In this Thursday, June 28, 2012 photo sits a 3 dollar bill, along with an American, bottom, and British-made musket from the revolutionary period, near Philadelphia. This artifact and others hidden ... more 
In this Thursday, June 28, 2012 photo sits a 3 dollar bill, along with an American, bottom, and British-made musket from the revolutionary period, near Philadelphia. This artifact and others hidden treasures will remain under wraps in their anonymous location until late 2015, when The Museum of the American Revolution is scheduled to open in Philadelphia's historic district. (AP Photo/Brynn Anderson) less 
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Associated Press | Photo By Brynn Anderson
Wed, Jul 11, 2012 9:57 AM EDT