9mm Pinfire Cartridge

Size: 9mm
Headstamp: blank
Manufacturer: UMC - Union Metallic Cartridge Company - Bridgeport, Connecticut, United States
Additional Info: This is an early variation of the 9mm UMC pinfire before they began including the U headstamp. This variation has some type of indentation in the middle of the base.
Additional Info: In 1873, a few years after the American Civil War, UMC began making pinfire cartridges for nearly 50 years. They made them in 7mm, 9mm and 12mm.
picture of Union Metallic Cartridge Company pinfire cartridge
Picture of Union Metallic Cartridge Company headstamp