I am hoping someone might be able to assist me in some research as I am grasping at straws. I recently acquired a very pretty plate that has a Prussia stamp on the back of the plate. The brand or whatever is partially gone...it is V???ELOCK (could be just two letters unreadable. Then it has Trade I Mark the mark is red and green and the top is a half wagon wheel. I am just curious to the maker and possibly year. (It is not for sale, but a family treasure that I would just like to know more about)! Thanks for any guidance!