China. (French Post Offices In Shanghai). 1873. Envelope written from 'Lacroix Cousins & Co, Shanghai' addressed to France bearing French Ceres Yvert 54, 10c brown/rose (pair) and Yvert 57, 80c rose tied by gros chiffres '5104' with adjacent 'Shang-Hai/Chine' double ring '27/11' , sent on the steamer 'Sindh' via Marseille with Lyon '8/1/74' arrival on reverse. Very fine.