Johnson Bros. had a line of China Called Windsor ware, Different style, and colors like flowers and Fruit different colors, Blue Windsor Ware and etc. Even seen one on replacements called Castle. Didn't see one like you have but I'm sure there are many others. As for the green number, I have lots of china with numbers smeared on the plate and etc. So I'm sure that is a mark for the maker, but that is just a guess. You have a intresting hallmark to say the least, havent' seen one with all that before, but that is not surprising. So many marks that can make one's head spin.