China. (Indo-Chinese Office In Chungking). 1908. Native envelope addressed to France bearing Tchong-King SG 2, 2c brown, SG 3, 4c brown/lilac and SG 6, 15c grey mixed with French China SG 3, 4c brown/lilac tied by Tch'Ong-K'Ing-Chine' double ring '29/3' , routed via 'Han-Keou-chine/Poste Francaise' transit '11/4' with Tain arrival '6/5' on reverse. Very fine.