"I thought it was unusual just because I've never bought one before I decided to buy it and decided to keep it," said Gonzalez.
He didn't know what to do with it until client Paul Perrone noticed the name Lt. Edwin Coe engraved on the weapon. The history buff then found a photo of Lt. Coe.
Coe was a union solder from Worcester, Massachusetts. He served in the 57th Massachusetts Regiment and died on June 16, 1864, leading a charge during the Battle of Petersburg.
Documents show he was only 19.