1680
used  ½c. on 3ca. yellow variety imperforate horizontally, a vertical pair, c.t.o. with Shanghai Customs c.d.s. Photo
used ½c. on 3ca. yellow variety imperforate horizontally, a vertical pair, c.t.o. with Shanghai Customs c.d.s. Photo

细节
used ½c. on 3ca. yellow variety imperforate horizontally, a vertical pair, c.t.o. with Shanghai Customs c.d.s. Photo