A 'FAMILLE-VERTE' MONTH CUP SEAL MARK AND PERIOD OF DAOGUANG

painted with a blossoming crab-apple tree, emblematic of the fifth lunar month, growing among clumps of grass and rocks, inscribed Qingxiang he suyu, jiase chu qingyan (After the fragrance of the evening rain, the rising sun enhances the beauty of the flowers in the mists), the six-character seal mark inscribed to the base in underglaze-blue 

Christie's Hong Kong, 23rd March 1993, lot 768.