Surely thats a Karmann. Only Hebmuller had official factory support so how could Austro Tatra police cars have had official VW id plates with type 18 on it? Paplers did not.
I think we call these cars type 18 because of the similarity with the official type 18 VW: the heb police car.
Looks to me like a police Karmann with some ID plates riveted on there from a Papler and a police heb.
Actually that sounds like I'm talking nonsense.
But what an insane barnfind. Love it!
The cream is the Heb, and you know it.