Bowl with two pearl chasing dragons among clouds

Bowl with spreading rim, painted in underglaze blue. The outer wall is covered with blue with therein reserved twice a four-clawed dragon chasing a pearl between clouds. The inner and outer rim are also covered with blue with therein reserved a cloud motif. On the base a rock surrounded by churning waves with above it the moon between the clouds. Marked on the underside with the six-character mark of Emperor Chenghua in a double circle. Blue and white.