I think I found it. It's probably a knock-off of the "SCHUTZ-MARKE".Yeah, what is, "Interesting"? Did you look in holzwerken.de?
Welcome, your post is right on topic. I believe "SCHUTZ-MARKE" is equivalent to "TRADEMARK" in English. Your axe has a Wiebelhaus trademark. I don't know the name of the model. Nice axe!"SCHUTZ-MARKE".