12th century The first of globular form with a short straight neck and wide mouth, flanked by loop handles, the body decorated with eight sets of five narrowly spaced vertical ribs covered with white slip against the black glaze with brown spots; the second of compressed globular form, surmounted by a gently flaring neck with wide mouth, flanked by small loop handles, the body decorated with vertical ribs covered with white slip against the black glaze; the glaze on each stopping just above the base to reveal the buff-colored body. 7 1/2in (19.2 cm) high, the taller (2).