The next line involved the propellant manufacturer (P. for Spandau's Pulverfabrik or Tr. for the powdermill at Troisdorf). The third line shown the product of primer (Zdh, or zundhuetchen), the date of manufacture, along with the maker; an "X" in between the primer variety and day of manufacture indicated it https://remingtonwlyku.designi1.com/41376013/the-basic-principles-of-cci-large-pistol-primers