A FINE LEMON-YELLOW-ENAMELLED WINE CUPYONGZHENG SIX-CHARACTER MARK IN UNDERGLAZE BLUE WITHIN A DOUBLE CIRCLE AND OF THE PERIOD (1723-1735)The cup is delicately potted with deep rounded sides rising from a short foot to a slightly flared rim and covered on the exterior with an enamel of lemon-yellow tone, the interior and base are covered with a transparent glaze.2 7/8 in. (7.3 cm.) diam.