China. (Indo Chinese Post Offices in Yunnan). 1907. Registered envelope addressed to Paris bearing Mengtsz SG 26, 35c black/yellow and Indo-China Post office SG 17, 4c purple/brown, SG 20, 20c red/green, SG 23, 30c brown, SG 29, 1c olive (pair), SG 30, 2c claret (pair), SG 34, 10c rose tied by Mong-Tseu-chine double ring '30th Mai' with framed hand-struck 'R' routed via Lao-Kay/Tonkin '4th Juin' and Haiphong '6th Juin' transits on reverse. Attractive franking. Ex Desrousseaux.