Just found this plate in a "lot" I purchased at auction. I can't find anything online that has this mold/pattern. Is this authentic and if so what would be retail value? I feel like this isn't the real deal but I have compared the mark on the back and it does match the real ones. The photo is a little redder. There is some greenish color inside the leaves. Just want to know if I should do more research of if its not worth the time and effort.