A number of jade scholar's objects from the early Qing dynasty inscribed with the names Zi Ang and Xue Song have been published. Compare a white jade wrist-rest in the Palace Museum, Beijing, illustrated in The Complete Treasures of the Palace Museum - Jadeware (III), Hong Kong 1995, p. 193, no. 158. A spinach green jade wrist-rest in the Victoria and Albert Museum illustrated by M. Wilson, Chinese Jades, London, 2004, pp. 64-65, pl. 67-68 also bears the same signature and seal. The author explains that the names Zi Ang and Song Xue (Snowy Pine Studio) were aliases of the great calligrapher and painter Zhao Mengfu (1254-1322) and the prevalence of these inscriptions on early Qing jades seems to indicate that the artist was held in particularly high regard at the time.