1970-75渣打伍拾圆蓝屋,编号B0370537, PMG45, 纸身有小针孔。The Chartered Bank,$50, ND(1970-75), serial number B0370537, blue and multicoloured, coat of arms at centre, bank buidling at left, watermark of helmeted warrior at right, reverse blue, buildings at centre,(Pick 75a), PMG 45 Choice Extremely Fine, small pinholes at bottom left