North Vietnam, Shoot-Down of the 1,000th U.S.Aircraft over North Vietnam, April 29th.,1966, Michel Nr. 442; A single stamp featuring a falling U.S. aircraft on fire was issued in a…
North Vietnam, Shoot-Down of the 1,500th U.S.Aircraft over North Vietnam, October 14th, 1966, Michel Nr. 450-451; A single stamp with a 12 xu nominal was issued in perforation 11.0.…