North Vietnam, Shoot-Down of the 4,000th U.S.Aircraft over North Vietnam, October 17th, 1972, Michel Nr. 707-708; Two stamps both with a 12 xu nominal were issued in perforation 11.0.

Mint blocks of four:

Single franking of one of the 12xu stamps paying the correct international letter rate to fellow socialist countries, in this case Czechoslovakia from January of 1973.

Mixed franking featuring both stamps of the Aircraft Shot Down set. together with a range of other NVN stamps for an overall postage of 60xu (the tariff that was introduced on January 1st, 1975 as international postage to all Eastern countries). The letter originated from the Public Affairs Department of the Central Post Office to the Ministry of Post and Telecommunications of East Germany in Berlin.

Mixed franking of a pair of the  green 12xu Aircraft Shot Down value together with the 50xu value Hai Thu’o’ng stamp for an overall postage of 74xu sent to Paris, France in April of 1973.

Rare registered express mail letter sent to Klewitz in March of 1973. The letter contains the set plus a number of im-perforated stamps of the “Wostock 3 and 4” set. Imperforate stamps on postally used cover are very rare. The overall franking amounted to 1.92 Dong which is above of the 1.60 Dong that would have been required for a standard registered express mail letter. So the letter may have contained a shipment of stamps and was heavier than the standard 20 grams.

Registration Nr. 102060

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