China 1892, Double Dragon Postage Due issue from the Shanghai Treaty Port, featuring a 5 cents denomination in pink with a black Gothic-style overprint reading "Postage Due." Printed via lithography by Nissen & Parker, London, this issue was produced for use by the Ministry of Industry and Information Technology in Shanghai. The design showcases the imperial Double Dragon motif, encircling the Chinese character for "Post," reflecting Qing symbolism and authority at foreign ports of trade. Perforated 15 and issued without watermark, this early postage due series marked China's adaptation of Western-style fiscal postal markings. Cataloged under Michel CN-SH P2, Scott SH 120 (Chan LSD2), Yvert et Tellier CN-SH T2, and Stanley Gibbons CN-SH D128. Hinged original gum with typical centering and intact perforation. Estimate "$180 – 220"