An Interesting Ceramic Bi Disc, Tang dynasty or earlierthe slender disc worked in imitation of a Han period jade bi , so that one face is decorated with overall nipple pattern, the surface of buff tone, darker on the projecting parts, and the other entirely smooth and undecorated, with a creamy buff surface of soft toneEx. Collection Mr. Ishiguru, Tokyo, Japan; formerly with Masaru Kawachi, Nagoya, Japan, since 1971.Condition report: Good, but with extensive minor rim chipping 品相报告: Lot 63. Bi disc. Good, but with extensive minor rim chipping