1979年 中华人民共和国成立30週年 精制金币一套四枚,包括: 人民英雄纪念碑 , 天安门广场 , 毛主席纪念堂 ,及 人民大会堂 ,22K金,含金量2盎士,连彩色原盒及证书,UNC. Peoples Republic of China, a set of 4x gold proof 400 yuan, 1979, 30th Anniversary of the Founding of the PRC commemorative issue, The Monument to the Peoples Heroes, Tian An Men, Chairman Mao Memorial Hall and The Great Hall of the People, 22K gold, AGW 2oz, in original multicolour presentation box and with certificate of issue, brilliant uncirculated.(4)