ado, I'm collecting since the 70s. At first I thought this was a fantasy pattern. But then 10 years ago or so I saw 2 period line drawings. Both interwar period or Freikorp era take your pick.
As for seeing others,,I've only seen one I thought was original and it was not for sale! Had the same hallmark by the way..

That is a perfect hallmark. Stamped in etc. SO,,either someone has an old original one,,or a new one was made or [??]