Sorry for bringing this one up to the top again. No news on the Frank & Reif yet.
However some of you know that I also collect portraits of badges in wear, failing that I hunt for mitglieds kartes/buchs showing the symbol. I find this sometimes helps me clarify that the badges did indeed exist during the period & aren't pure fantasy. For some time I've been hunting info for this organisation without any success. Considering how common the pins are, pictures & membership documents are rarer than hens teeth! I contacted all the doc collectors I know & none had ever seen one.
Last week I had some success as this isn't the paperwork area I've put a badge in the picture as an excuse
Cheers
Don