Laos. (French Indo-China). 1938. Registered Air Mail envelope addressed to Switzerland bearing French Indo-China SG 146, 7c brown, SG 169, 2c green, SG 181, 10c blue, SG 184, 15c deep blue, SG 197, 1c brown and SG 206, 36c carmine tied by Camp de Tran-Ninh/ Laos date stamp '5th Aout' with matching registration label, routed via Vinh/ Annam and Hanoi with Lausanne arrival '19th Sept'. Superb item of registered mail from French Military Camp in Laos.