Hello everyone!
I think there are hopefully some coin collectors from Austria here that can give me a hand with this:
I have this coin in a case. There is “von poliertem stempel” written on the little squared information sheet (it should be proof, I suppose), but no Austrian mint symbol whatsoever. I couldn't check the coin yet (I am not at home; maybe there is more info in the info sheet). Anyway, can anyone tell me if this is the original Austrian mint proof case (picture below)?

Danke!
