2mm long blank Pinfire Cartridge

Size: 2mm long blank
Headstamp: blank
Manufacturer: Unknown Manufacturer - Unknown
Additional Info: The 2mm pinfire cartridge sizes varied quite a bit. The base is generally between .078 and .088 inches (2mm) whereas the case length ranges anywhere from .117 to .211 inches. This particular cartridge is the longest I have found; measuring in at .211 inches.
picture of Unknown Manufacturer pinfire cartridge