Celadon Plate vintage signed excellent shape

Check out the picture you can see this plate is very old. Great condition has koi Fish and Plate is not flat and that is done to show the pictures on it look real hard to explain also pictures show a signature I’ve yet to study Chinese signs there are many and much to learn. You would think I would have since the Japanese and older Chinese pieces are my main collection. The plate does have the larger bottom rim on it so there is age for sure. Non smoking home.