ChinaChina / Kouang-Tcheou 1937 Air Mail envelope
cover to the Bank of Indo-China Paris bearing Indo-China Yvert 159, 5c Purple and Air Mail Yvert 8, 36c Red mixed with Kouang Tcheou Yvert 77, 1c Orange, Yvert 82, 6c Red, Yvert 86, 10c Blue (2) and Yvert 94, 50c Green and Grey tied by Fort Bayard Kouang Tcheou datestamp routed via Hanoi to Paris. Very fine franking. (pt)
