Can you identify a china mark?

I picked up a piece of china, it's like a little serving tray, about a foot long and 8 inches wide with "handles". It's white, probably had gold trim, but worn now. The mark on the bottom is green with "Prussia" at the top, then a 5 pointed crown, then the letter B in kind of a horseshoe type thing under that. I don't think it's RS Prussia, but it might be. Anyone know? Thanks in advance!

Can you identify a china mark?
http://www.kovels.com/priceguide/kovels_...





Check this symbol to see whether it matches yours. If not use the search engine on Kovels to put in your information to determine what you have and what it is worth. I collect a lot of china and there are other Prussia marks...





But if you are going to identify it, this site is comprehensive.