1972年香港海底隧道开通纪念金章、银章、铜章一组三枚MS66、69、70精品。银章MS70现时最高评一枚1972 HK Set of Gold, Silver & Bronze Medallions Commemorating the Opening of the Harbour Tunnel. SOLD AS IS/NO RETURN. MS70 currently the highest score for the silver. PCGS MS69 & 70, MS66RD 金盾 (3pcs)