291 - Chinese Yongzheng Period (1723-1735) Fine Lemon Yellow Glazed Porcelain Wine Cup. Signed with Six (6) Character Underglaze Blue Yongzheng Mark within Double Rings. Very Good Condition. Measures 1-3/4 Inches Tall and 3-5/8 Inches Diameter. Shipping $30.00 (estimate $600-$800)