Beautiful Cobalt Blue and White Swirl Design Bowl Japan

This is a really pretty piece of blue and white Japanese porcelain. it looks like excellent quality. It is marked Japan with Japanese lettering also. The underside is bright cobalt or royal blue in a hand stroked paint. The edge is redish brown and the inside is a lovely pinwheel pattern with overall coverage of repeating patterns, floral geometric, chintz. This pretty piece measures 1.5 inches high and 4 and 7/8 inches across. It is a nice rice bowl size. It is in excellent condition, no chips, no cracks, and no visible signs of wear. I do not know the age of this piece or what the Japanese mark says.