DAOGUANG PERIOD (1821-1850), INCISED DINGFU HALL MARK IN SEAL SCRIPT

Dingfu is the hall mark of Prince Ding, Zai Quan (1794-1854), the younger brother of the Daoguang Emperor, and a passionate patron of the arts. His other hall mark is Xingyouheng tang, and is used interchangeably or in tandem with the Dingfu hall mark on the works of art commissioned by him.