A BLACK-GLAZED DINGYAO TEA BOWL Song dynastyPROPERTY FROM THE ESTATE OF JUNG YING TSAOA BLACK-GLAZED DINGYAO TEA BOWLSong dynastyOf conical form with a slightly flared rim, covered overall in a glossy black glaze thinning at the rim to a dark brown shade, the glaze stopping above the low foot exposing the buff-colored body. 5 1/4in (13.3cm) diam. Provenance:Jung Ying Tsao (1929-2011), thence by descent