CIWL envelope Constantinople (1912), Eugène Mouchon, 20 April 1912

Compagnie internationale des wagons-lits (ciwl) printed envelope with a french levant 1 piastre "mouchon" stamp, mailed in 1912 from constantinople-pera to france. Ciwl was the operator of the orient express train service. Date: 20 April 1912.