Lot# 9081

franked with two Silver Yuan unit stamps and additionally bearing a 10 fen Chinese National Currency (CNC, 1940 issue) stamp erroneously accepted as Silver Yuan currency, making a total postage of 20 fen, tied by Yungning cds, and arriving Shapingpa on Oct 16, 1949. The franking correctly pays the domestic rate of 20 fen, comprising 5 fen letter rate plus 15 fen registration fee. Of particular interest is the incorrect use of a CNC stamp as Silver Yuan currency, forming a rare mixed franking of different currency systems, illustrating the practical confusion and transitional usage during the early Silver Yuan period. According to records, such mixed CNC and unit stamp combination covers are extremely rare, possibly unique. The cover bears clear despatch and arrival markings, and vividly demonstrates postal operations during the currency transition period, offering significant postal history and exhibition value for the study of early Silver Yuan domestic rates and stamp usage.