INDOCHINA 2 COVERS 1951 VIETNAM FIRST ISSUES MULTIPLE PATRIOTIC CACHETS + PMKS

Printed Air Mail + plain envelopes posted locally in Hanoi North Vietnam, with Vietnam First Issues franking; HA-NOI VIET-NAM postmarks; + multiple patriotic cachets celebrating Unity of Indochine states Annam, Cochinchine + Tonkin.  2 covers.