The People's Republic of China, a proof set of 4x gold 400 yuan, commemorative of the 30th Anniversary of Founding of PRC, each coin weighs 1/2 oz containing 22K pure gold, AGW 2 oz, 'Tiananmen Square', 'Mao Zedong Memorial', 'Great Hall of the People' and 'People's Heroes Monument',the second coin graded NGC PF 69 Cameo and the rest graded PF 70 Cameo, with original box and certificate, serial number 22641, #6374448-008, 6374448-001, 6374448-005 and 6374448-004 (a set of 4)..
Estimate: 30000 - 45000