All examples of this trademark clearly state "PORZELLAIN FABRIK". This is not a valid term in the German language, and even if it is accompanied by the words "BAVARIA" and "GERMANY", this mark is definitely not German. And no, it's not "marked like that for foreign use", as some sellers claim. Don't be fooled!

M210914a
Crowned helmet above a shield containing an "R", all above "PORZELLAIN FABRIK", "BAVARIA" and "GERMANY".