2017年世界钱币展览会·柏林-中德友好特别展纪念熊猫铜镀金加厚样品,发行量3枚,重量16克,精緻镜面,NGC PF69 ULTRA CAMEO,CHINA-BERLIN 2017 World Money Fair Berlin-Sino-German Friendship Berlin Special Exhibit 16g Copper Gold Gilt Pattern Proof, Commemorative Show Panda,Piefort Die Trial,Sample,Mintage 3,NGC PF69 ULTRA CAMEO