Indochina Offices: 1898-1950 envelopes (15), including 1898 cover (rust spotted) to Shanghai showing on reverse "CUSTOMS/MENGTZE" c.d.s. and bearing on front French Indochina 25c. cancelled by "LAOKAY/TONKIN" c.d.s., 1901 cover to Switzerland bearing 5c. pair + 15c. showing "VAPEUR NO. 19/COCHINCHINE" c.d.s. adjacent, 1920-22 covers (3) from Hanoi, Phanrang and Saigon with mixed Indochina-China or Canton frankings, and various special flight covers