w above C OR crown above C on west germany pottery mark

w above C OR crown above C on west germany pottery mark:- I have what I believe is a punch bowl or soup Tureen
On the bottom it has etched into the item

West (on top)
Germany (Germany on bottom)

Next to that there is a large "C" and above it a small "w" or a crown (not sure) Under that is 570 and under that 4 Ltr

It is made like the German steins etching and shows hunters chasing deer and Bore. I can send pictures but can't get a good shot of the mark. It looks similiar to the mark of Julius Griesbach-Cortendorf but there is no sword and it is not in a box although there was a site that showed many different marks. Anything would be helpful.