Hello,
Currently on ebay a photo of a DFW Stahltaube. As the seller states Superselten! at:
https://www.ebay.de/itm/SUPERSELTEN-...gAAOSwUyZekKxC
Edit
Incidentally, is anyone brave/reckless enough to state that the Taube shown is definitely/definitely not a DFW Stahltaube. Two photos i've seen of machines A.183/13 and A.184/13 both have the serial on the fuselage in relatively large characters, whereas the machine in the photo in the link has the serial under the tailplane, thoughltlessly hidden by the individual in front of it. Not conclusive I know. Merely thinking aloud.
Regards,
Clint