12mm Pinfire Cartridge

Size: 12mm
Headstamp: blank
Manufacturer: C. D. Leet - Springfield, Massachusetts, United States
Additional Info: "U.S. Length" used durring the Civil War by Ethan Allen, C.D. Leet and others based on Sharps patent which called for a metal plate in bottom of cartridge for strength.
picture of C. D. Leet pinfire cartridge
Picture of C. D. Leet headstamp