This is a beautiful Nippon Blue Bird Master Salt with the #10 Crown Mark. The Salt is decorated with a Blue Bird, pink cherry blossoms and gold trim. It is in excellent shape with no chips, cracks or crazing. There is a green crown mark on the bottom. Joan Van Patten refers to this as 'Green Crown Mark #10' With 'Hand Painted' in Red and 'Nippon' below the crown. Circa 1891-1921.