just trying to get some information on the Kings powder plant-Peters cartridge company. I found an old brass shotgun cartridge that had P.C.C. 12 Ga League on the rim. Just trying to find out when it might have been made. From what I've read, Peters started out Kings powder plant after the civil war....does anyone know what year Kings started up? What year it became Peters C. C.? What year the "League" shells might have been produced? I would appreciate any information anyone has.