Bowl, stoneware, inverted conical form of double-walled construction with an inset base, conical lower section curving out to the angle with the straight-sided and slightly flared upper section, an airhole on the underside, inside an inverted conical profile curving down into the bottom of the bowl; inside, a glossy black glaze with lustrous specks and edge at the rim, a matt black glaze on the underside.