1981年精製套币4枚。中国出土文物青铜器。CHINA. Four Piece Proof Set, 1981. Bronze Age Archaeological Finds. PCGS PROOF-67 DEEP CAMEO Secure Holder (2) & PROOF-68 DEEP CAMEO Secure Holder (2).包括面值200到800元。均为PCGS评鉴。龙、象评为PF67,豹和犀牛则评委PF68。均带有原盒原证,编号#00014。属于极早期编号,非常重要和难得。PCGS PROOF-67 DEEP CAMEO Secure Holder (2) & PROOF-68 DEEP CAMEO Secure Holder (2).