The ovoid body tapering to a spreading foot, the elongated neck decorated with a pair of concentric rings below a cupped mouth, the exterior covered overall in a finely mottled peachbloom-type glaze, the underside bearing a Yongzheng six-character underglaze blue mark within a double ring.

Note:
For a blue glazed example of the same form see Fine Chinese Ceramics & Works of Art, Sotheby's Hong Kong, 7 October 2009, lot 1631.
For a flambe glazed example also in the same form see Appreciating Elegance: Art from the Sui Yuan Zhai Collection, Christie's London, 11 May 2015, lot 8.

參考：
雍正本朝藍釉瓶一件見香港蘇富比2009年10月7日中國瓷器藝術品專場，編號1631。
雍正本朝窯變釉瓶一件見倫敦佳士得2015年5月11日隨緣齋珍藏藝術精品專場，編號8。