China 1893, postage due stamp from the Treaty Port of Hankow featuring a 30 Chinese cents denomination, printed in red ink on green-yellowish paper with a distinctive local building design. Issued in June 1893, this daily-use stamp was produced by typography and bears the characteristic mixed perforation—rouletted 10 on one side and imperforate on the others—common to early treaty port emissions. The overprint validated its use strictly within the Hankow postal jurisdiction, serving to collect unpaid postage from recipients in the active commercial hub along the Yangtze River. The stamp is canceled in blue with a clear strike reading “Hankow,” a rare and desirable cancel that enhances both its visual appeal and postal provenance. Cataloged as Scott HAN 35, this issue represents a period of semi-autonomous postal administration under treaty arrangements with foreign powers. Condition Fine used with vivid ink, intact roulettes, and an unusually crisp blue cancellation. Estimate "$220 – 260"