China. (Indo Chinese Post Offices in Tchong-King). 1910. Picture post card of 'Koen-Tse-Ko, Upper Yangtse' addressed to France bearing Tch'ong-King Yvert 48, 1c olive, Yvert 50, 4c lilac and Yvert 51, 5c green tied by Tch'Ong-K'ing-Chine' double ring routed via the French Post Office Hankow with 'Han-Keou-Chine/ Post Francaise' double ring and Longeau receiver in France. Very fine and attractive.