This is (presumably) a daily wear copy of a PLM that I have had for several years. It is not in bad shape, but it has obviously spent a lot of time on somebody's collar and has taken quite a few knocks over the years. I wondered if anyone was familiar with the mark on it. Photos are attached. The ring is marked 900 vs the 800 seen on most German silver. I had a hard time deciding that, but the bottom of the loop is definitely open when looking at it with a loup. There are a number of details that I think are important, but I am more interested in hearing what some of you all have to say without coloring your thoughts in advance.