1978年500澳元精制金币。 总重:0.2347 盎司。发行量:5,500 枚。澳门格兰披治大赛车25週年纪念。镜面底板,图文霜化。 MACAU. Gold 500 Patacas, 1978. NGC PROOF-67 Ultra Cameo. Fr-1a; KM-13. 0.2347 oz AGW. Mintage: 5,500. Struck for the 25th Anniversary of the Grand Prix. A brilliant Proof with hard mirrored fields and frosted cameo devices.