Found on Bull Run Creek just outside the Manassas Battlefield in Virginia. Very light. Appears to be made out of aluminum. I can made out the words “Lucky Piece” and “Solid” on one side, but nothing on the other side.
A man would be lucky indeed to have an aluminum item in the CW. Very rich, as well. Prior to the invention of the Hall-Heroult process in the 1880's it was worth more than gold or platinum.