SOUTHERN CHINA YUAN 1271-1368. Porcelain ring bowl with blue and white "quinqhua" floral decoration on the outside, and a fisherman on a boat on the inside. (Firing crack). Dating from the second half of the 13th century, under theYuan dynasty, of Mongol "Kubilai Khan" origin, this bowl is a telling example of early porcelain with underglaze "Mohammedan" blue enamel decoration - a name that evokes the Middle Eastern roots of this technique - and the cobalt oxide composing it. (Chipping on the base due to a thermoluminescence test, which we do not have). Height: 8.5 cm; diameter: 18 cm.