During the Tang dynasty, foreigners were a popular motif on jade belt plaques. A number of these are illustrated in The Complete Collection of Treasures of the Palace Museum - 41 - Jadeware (II), Hong Kong, 1995, pls. 22-27. The bearded foreign musician playing a flute on the plaque in pl. 22, wears a similarly depicted robe, and the seated foreign musician on the plaque in pl. 23, appears to be playing a sheng.