The Police 18 year is fine, the ribbon looks ok too. The Customs could be a zinc Deumer as found on the barter boards but I will defer to the other guys on that (it's certainly not the default earlier bronze type as shown on the other thread)
No expert but to me the police 18 year & ribbon look great and, although I dont have one, I also like the zink customs cross: the detail is good and the finish looks identical to what you often see on zink NSDAP 10 year crosses
Comment