三角洋钱, 红棕色印于浅黄色纸, 票背染有蓝色油墨, 无背胶.Hankow 1893 Second Issue Colour Trials 30c. red-brown on yellowish paper, showing some blue ink printed on the reverse, without gum. Photo<pr>
三角洋钱, 红棕色印于浅黄色纸, 票背染有蓝色油墨, 无背胶.Hankow 1893 Second Issue Colour Trials 30c. red-brown on yellowish paper, showing some blue ink printed on the reverse, without gum. Photo<pr>