1981-1984年澳门大西洋银行50元背面顏色试印票,印於大型纸张上,PMG 66EPQ,少见印刷前之试验製品。Macau: Banco Nacional Ultramarino, 50 patacas, uniface reverse die colour proof, series of 1981-1984, violet, view of Baia da Praia Grande, on large sized paper,(Pick 60pp2), PMG 65EPQ Gem Uncirculated. Very rare pre-production material on large sized paper. Choice condition!