This undated photo provided by the National Museum of Civil War Medicine shows a human arm. The National Museum of Civil War Medicine in Frederick, Md., is trying to determine whether this preserved ... more 
This undated photo provided by the National Museum of Civil War Medicine shows a human arm. The National Museum of Civil War Medicine in Frederick, Md., is trying to determine whether this preserved human forearm, photographed in January 2012, is a relic of the Civil War Battle of Antietam, fought near Sharpsburg, Md., in September 1862. The arm was donated anonymously to the museum after having been displayed for decades at a private museum in Sharpsburg. A local farmer reportedly found it shortly after the battle and preserved it in brine. (AP Photo/Courtesy National Museum of Civil War Medicine) less 
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Associated Press | Photo By Courtesy National Museum of Civil War Medicine
Wed, Apr 11, 2012 3:40 PM EDT