Bowl with two pearl chasing dragons among clouds

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