China. (Indo Chinese Post Office Tchong-King). 1910. Picture post card of 'Wushan Gorge, Upper Yangtse' addressed to France bearing Tch' ong-King Yvert 49, 2c pale brown and Yvert 50, 4c lilac (2) tied by Tch' Ong-K'ing-Chine double ring routed via the French Post Office Hankow with 'Han-Keou-Chine/Poste Francaise' double ring and Longeau receiver in France, very fine and attractive.