@Broken Wings

The ones you got there are really made in Germany...in Bavaria (You see the flag of Bavaria in the box)

The engines are originally German, then wer produced in Austria and then are/were made under license by Mecoa??

I'm living in Germany, and I had the oportunity to visit a modeler friend hier (in Munich), he has there old engines from his father, and one of them is a HB, with the made in Germany words...and they explained me that they were first made there... the engine looks just like those ones, it was more than 20 years old....

Saludos

Jorge