1980年中国奥林匹克委员会莫斯科奥运会精铸银币一组3枚,包括20元1枚重10克,及30元2枚各重15克,分别「摔跤」「足球」及「马术」,均含.900银,总含银量32克,分别NGC PF69 Ultra Cameo, PF69 Cameo 及 PF68 Cameo,每款发行40000枚。 Peoples Republic of China, set of 3x silver proof 20 Yuan (1) and 30 Yuan (2), 1980, the first weighs 10g, the second and third 15g, containing .800 silver, total ASW of 32g, Moscow Olympics, Wrestling, Football and Equestrian,graded NGC PF69 Ultra Cameo, PF69 Cameo and PF68 Cameo respectively, mintage of 40000 pieces each (3)