Test of the 1. Hydrogen Bomb on June 17th, 1967 by the Peoples Republic of China

North Vietnam, Test of the 1. Hydrogen Bomb on June 17th, 1967 by the Peoples Republic of China, November 20th, 1967, Michel Nr. 497-498; Two stamps with the nominals of 12 xu and 20 xu were issued with perforation 11.0 and im-perforated.

Here is the mint perforated set:

Here is the mint im-perforated set:

Mint im-perforated set in pairs:

A very rare im-perforated trial proof exists which shows a very different design of the peace dove (ex Klewitz). Note the printer guiding marks surrounding the stamp.

Mixed franking of the 3xu Cultural Development stamp together with the 50xu Geneva Agreement, 1 xu Liberation Front and 20 xu Hydrogen Bomb stamps paying an overall postage of 74xu on an international air mail mailing by Xunhasaba sent in November of 1969 from Hanoi to Sweden.

Mixed ranking of the 50 xu Fruit value together with the 20 xu Hydrogen Bomb stamp paying an overall postage of 70 xu on an international air mail letter sent from Ha Phong to Switzerland in December of 1968. East Berlin transit cancel on the reverse.

Very rare express mail letter that features both, the perforated and im-perforated set sent to Klewitz in February of 1968. It also carries the im-perforated versions of the 12 xu and 50 xu of 1962. Im-perforated stamps on postally used cover are very rare. The overall postage of the letter amounted to 1.26 Dong which was above the required tariff for a standard express mail letter West Germany (1.00 Dong) . The letter may have contained some stamps that Klewitz had ordered from his contact as the red hand stamp “Kein Zollgut” (No Dutiable Merchandise) indicates. Stamps from Vietnam could be imported tariff free. East Berlin and Fulda transit/arrival cancels on the reverse.