This is a Yuan dynasty Longquan Pan shape dish. It is 16 cm in diameter, and heavily potted. It has a kiln imperfection on the bottom, otherwise fine condition. It is ex Donald Farm collection, who inherited it from the well known writer Warren Cox. A ver similar piece is depicted in the Longquan catalogue from Priestley and Ferraro. A similar shaped plate was found in the Dayao kiln. Also were plates like this found in the Sinan shipwreck.