Cambodia. (French Indo-China - Laos - Siam). 1892. French General Colonies postal stationery letter card 15c blue cancelled by Saigon-Port/ Cochinchine double ring '14th Juin 92', addressed to Stung-Treng par Pnompenh with Saigon Central and Pnompenh/ Cambodge transits.
Interesting letter on Kratie and going to Japan.
In 1892 Stung-Treng was still part of the Lao Kingdom of Champasak.
The French Indo-Chinese Post Office in Stung Treng opened in 1893.