1981年中华人民共各国国库劵样张3枚一组,面值10丶100及壹仟圆,均评PMG64;People s Republic of China Treasury Bond, group of 3 specimens, for 10, 100 and 1000 yuan, 1981, blue, maroon and dark green respectively, each showing construction scene,(Pick not listed), all graded PMG 64 Choice Uncirculated (3)