I won a cartridge box at an auction and need help identifying it. I came with 16 Spencer 56 caliber rounds. It looks "home made" but is well made. It is about the same size as a McKeever pouch, but is made similar to a Civil War cartridge pouch with the tin insert. Any ideas? Did any of the Civil War carbines other than the Spencer use the 56 Spencer round? I will try to attach pictures.pouch-1 (640x480).jpgpouch-2 (640x480).jpgpouch-3 (640x480).jpgpouch-4 (640x480).jpgpouch-5 (640x480).jpg