Degens
I am glad you started this post, its great to learn more about these.
Now that is one of the best close-up pictures ever posted. Wayne and some of the other experts have seen more of these so I am going to pass the buck to them.
Does the metal around the lines and dots seem to be higher than the rest of the surface. If it is doesn't that indicate it was probably done after the plating process. The one I pictured must have been done before for there is a lack of the high medal.
