Going through my Austrian perfins I discovered a quite unusual cancellation. Could that be a "Stummer Stempel" (cancellation without date and city) or does it look like a forgery?
I heard of those cancellations being quite rare, so maybe someone can tell me more about this piece.
The company that used this perfin was based in Vienna and had branches in Breitenau, Gratkorn, Goerz, Pitten, Spittal, Prag, Czaniec, and Laibach - maybe that information could help as well.
Thanks a lot in advance for your help!
