Description A RARE YUTEKI TENMOKU ‘OIL SPOT’ JIAN TEA BOWL SOUTHERN SONG DYNASTY (1127-1279) The deep, rounded conical sides are covered inside and out with a thick, iridescent brown glaze suffused with a dense pattern of variegated iridescent ‘oil spots’, stopping in an irregular line and pooling above the foot, exposing the blackish-brown body. Height 2 1/4" Diameter 4 1/8"