1. Anniversary of the Establishment of the provisional Government in South Vietnam by the NLF

North Vietnam, 1. Anniversary of the Establishment of the provisional Government in South Vietnam by the NLF, June 6th, 1970, Michel Nr. 617; One value with a 12 xu nominal was issued in perforation 11.0.

Here is the int stamp.

Rare single franking of the stamp on an international air mail letters ent from Hanoi to Czechoslovakia in January of 1972.

Rare registered express mail letter sent to Klewitz in October of 1970. Apart from the the 12 xu NLF Government stamp it also features a playful single 5 Dong stamp from 1948. While the 5 Dong stamp was still valid for postage in 1970, it had already been devalued twice. By 10:1 in 1954 and by 1,000:1 in 1959. It hence was only worth 0.0005 New Dong in 1970 and therefore quasi worthless. May be this was the reason that the postal clerk did not grace it with a cancel. The overall postage of the letter amounted to 2.68 Dong which was likely in excess of the required postage for a standard 2 gram registered express mail letter to West Germany (Tariff of 1.60 Dong).