Tea-leaf storage jar with four lugs and "Sobokai" mark

Fine-grained, medium gray clay, darkened on surface by use. Concentrically trimmed base, slightly concave. Four lugs on shoulder. Inscription, "Sobokai," incised on base. Iron glaze applied by ladle to inverted jar, creating swagged contour; ash glaze appled in thin band only to shoulder, running in irregular trails onto body and breaking, in places on shoulder, into yellow-brown patches with bluish edges. Inside unglazed.