Thank you for posting the additional image, as I expected, a very nice original! Unfortunately, I do not know of any lists of members, I imagine that they may well exist somewhere in the Berlin archives & just haven't been researched yet. I imagine that these pins & broaches may indeed have been quite common during the period of the Reich, although it is rare to see them being worn in photographs. Today they are scarce, probably due to them being disposed of because the fear of being caught with anything SS related at the end of the war. Incidentally, it may interest you to know that the broach form is rarer than the stickpin for some reason. I thought you might like to see some images from a dues book. The first is just the cover showing the symbol. Cheers Don