A RARE DOUCAI 'DRAGON MEDALLION' JARYONGZHENG SIX-CHARACTER MARK IN UNDERGLAZE BLUE WITHIN A DOUBLE CIRCLE AND OF THE PERIOD (1723-1735)The finely potted jar is decorated to the exterior with five medallions, each enclosing a five-clawed dragon in pursuit of the flaming pearl amongst scrolling clouds and intercept by clusters of scrolls and tendrils, all above a band of stylized lappets to the foot. The shoulder is decorated with bajixiang above a band of stylized ruyi-head shaped clouds in green enamel.7 1/8 in. (18.3 cm.) high