From a 1993 Michel
164 says
Wandernde Eisenbahn-Bureaux Funfringstempel auf gez. 250
auf 300
Einringstempel 50
Zackenkranz 250
Which, using Google, when you separate the stempel words from the prefixes is
Wandering railway bureaux signed five-membered ring stamp on 250
300
Penetration stamp 50
Serrated rim 250

You have to allow for the so so translation of Google.