The next line concerned the propellant maker (P. for Spandau's Pulverfabrik or Tr. for the powdermill at Troisdorf). The third line stated the product of primer (Zdh, or zundhuetchen), the date of manufacture, and also the maker; an "X" in between the primer kind and day of manufacture indicated it https://brooksvunia.develop-blog.com/25202626/the-greatest-guide-to-cci-primers-for-7mm-rem-mag