1958年葡属几内亚500士姑度正反面样钞一对,分别评PMG53及53NET, 样钞正面有微破裂;Portuguese Guinea, a pair of 500 escudos uniface obverse and reverse die proof, no date (1958), serial number 14412 and 14418, brown, João Teixeira Pinto at left, arms at top centre, reverse green, a woman and ships at cetre,(Pick 39pp), PMG 53 and 53NET, Printer s Annotation and Previously Mounted, Edge Damage for obverse (1 pair).