The rather violet tone of the underglaze blue on this jar is indicative of the new sources of cobalt on the mainland, which gave rise to increasingly rich violet-blue decoration on wares towards the end of the Ming period. A jar of this kind which reached England during this period was highly enough regarded by its Elizabethan-period owner to be adorned with silver-gilt mounts, adapting it for use as a covered tankard. See D. Lunsingh Scheurleer, Chinesisches und Japanisches Porzellan in Europaischen Fassungen, pl. 7. Another similarly decorated jar with Jiajing mark was included in the Exhibition of Chinese Arts, C.T. Loo & Co., 1 November - 30 April 1942, no. 660; and one from the collection of Ch'ing Wa Li was included in the exhibition, Chinese Ceramics, Los Angeles County Museum, 14 March - 27 April 1952, p. 101, no. 289.