国家经济建设公债正反面样本册2本,1957年及58年,面值均为1至100元,AU至UNC品相. 债券及股票、纸杂及其他杂项. National Economic Construction Loan, lot of 2 specimens booklets dated 1957 and 1958, the 1957 book contains all denominations from 1 to 100 yuan, and the 1958 1 to 100 yuan also, all uniface obverse and reverse pairs,almost uncirculated to uncirculated, a few pieces in the 1958 book has become unstuck (2 books)