The 2nd line involved the propellant company (P. for Spandau's Pulverfabrik or Tr. to the powdermill at Troisdorf). The 3rd line outlined the product of primer (Zdh, or zundhuetchen), the date of manufacture, as well as the producer; an "X" involving the primer sort and date of manufacture indicated it https://remingtonprimers91235678.ja-blog.com/19877457/5-easy-facts-about-cci-200-primers-described