Second half of the 16th century, Shuang yu ji yong four-character mark|Finely painted in the interior with a central medallion enclosing two ducks swimming amid lotus plants, two fish beneath the water in underglaze blue, all within a double line border repeated at the rim, the exterior similarly painted with four fish divided by lotus plants, within double-line bands. 14.3cm (5 5/8in) diam.|十六世紀下半葉 五彩蓮塘鴛鴦盤青花「雙玉記用」楷書款