A GROUP OF FOUR BLUE AND WHITE BOWLS, IRAN AND CHINA, 12TH-13TH CENTURY

A GROUP OF FOUR BLUE AND WHITE BOWLS, IRAN AND CHINA, 12TH-13TH CENTURY
One with a band on incised pseudo-kufic to interior, one painted to interior with small floral element, and to exterior with petals, one with with vertical cobalt stripes and another - 6in (15.2cm) diameter (4)