1979年中国书画展银章一对,徐悲鸿及齐白石,分别评NGC PF68 及 PF65 Ultra Cameo﹐连原盒及证书。Peoples Republic of China,a pair of silver medallions struck to commemorate the Chinese Paining Exhibition in Hong Kong, 1979, featuring Xu Beihong (1895-1953) and Qi Baishi (1863-1957), each medallion weighing 14 grams and with 0.98 silver fineness,graded NGC PF68 and PF65 Ultra Cameo, with the original box, packaging and certificate of authenticity (2)