A rare pair of blue and white `double vajra` dishes, Marks and period of Yongzheng 清雍正 青花金剛杵紋盤一對 《大清雍正年製》款the interior painted with a circular medallion enclosed by double-line borders depicting crossed vajra among billowing ribbons, the double-line borders repeated at the rim, the underside with two lines of lança characters, the base with a six-character reign mark within a double circle in underglaze blueDiameter 17.2 cm, 6¾ in.(2)品相: 来源: Sotheby`s Hong Kong, 22nd May 1979, lot 173.香港蘇富比1979年5月22日，編號173