Very rare and fine Chinese porcelain shallow dish with low rounded sides rising to the brown-dressed rim, the interior delicately painted (Master of the Rocks ?) in under glaze cobalt blue (Qinghua) with pavilions set amidst a mountainous waterscape, beneath four panels of landscapes reserved on a diaper ground interspersed with small florets, the reverse painted with lingzhi and floral sprays encircling the countersunk base with the Yongzheng six-character mark in two lines in under glaze cobalt blue (Qinghua) within a double circle and of the period (1723-1735), Qing dynasty, ø 17.1 cm, 6 ¾ in