A divided circle (stylized crown?)
This fine porcelain bowl is about the size of a rice bowl; it's approx. 2.5" (6.4 cm) tall and 4.8" (12.2 cm) in diameter. It's in excellent vintage condition, with no chips cracks or crazing and only very minor manufacturing irregularities (a tiny pockmark in the glaze near the rim and an area of cloudiness in the blue glaze above one of the white and pink designs; the latter isn't really a flaw, but I thought I would mention it anyway).
Have any questions? Contact the shop owner.