The basic color of Ru kiln enamel is a light sky blue, commonly known as "duck eggshell blue". The cracked pieces on the glazed surface are mostly scattered and extremely fine-grained pieces, which are transparent and colorless like ice cracks, commonly known as "crab claw pattern". There are two types of Ru kiln porcelain inscribed with the characters "Fenghua" and "Cai", which should be engraved later, and should be engraved in the Song Dynasty, both of which are related to the Song court and the royal family. Ru kiln porcelain is dominated by glaze color, and pattern decoration is rare, but before Ru kiln fired tribute porcelain, there were engraved and printed products.

6.5 x 17 cm