Unified Vietnam, 25. Anniversary of the Cuban Revolution, July 20th, 1978, Michel Nr. 984-985; Two stamps, one with a 6 xu nominal nd the other with 12 xu, were issued in perforation 11.0.
These stamps were not officially released im-perforated however a small number of im-perforated trial proofs have come to market. Here is an im-perforated pair of the 12 xu stamp plus a pair of the same stamp that shows a significant passer-shift downwards of the blue color:
Very rare im-perforated presentation sheetlets of the set on glossy newsprint paper. Note the printers guiding marks surrounding the stamps:
Here is a perforation error on the 6xu stamp that shows a double perforation strike in-between the two stamps.
Rare local letter featuring multiple franking of the 6xu value paying the 12xi domestic letter rate on a letter sent to Mytho in October of 1981. Red official seal in the top left corner.
Rare local letter (with full original contents) using a single 12 xu stamp. The letter emanated from a re-education camp in Nam Dinh in 1978 and was sent to Ho Chi Minh City. Initially letters from re-eduaction camps were free of charge but that changed in 1977 after which the standard local letter of 12 xu applied.
Rare local letter featuring a single franking f the 12xu stamp on a re-education camp (K5) letter sent to Ha Bac in 1979.
Very rare registered letter that features pair of the perforated 6 xu stamps plus the two im-perforated error stamps above mailed to Klewitz in January of 1983. Error stamps on postally used cover are very rare as most philatelist wouldn’t want error stamps to be exposed to loss or damage during postal transit. The overall postage amounted to 5.48 Dong (including the 1 Dong red free frank).
Another very rare registered local letter sent in October of 1980 from Di An To Ho Chi Minh City. It carries an im-perforated 12 xu stamp of the Cuba set. Im-perfroated stamps on postally used cover (especially used locally) are very rare. HCM City arrival cancel on the reverse.
Rare registered express mail letter sent to Klewitz in August of 1978. It carries a pair of the set plus a range of other contemporary NVN stamps for an overall postage of 4.40 Dong. Interesting Basel-Frankfurt rail transit cancel and Fulda arrival cancel on the reverse. Green Fulda custom cachet on front.
Rare registered express mail letter sent to Klewitz in October of 1978.It carries the set plus the Cuba set for an overall postage of 4.82 Dong. The zero money free-frank was required to produce the R-label as it was produced by the same franking machine. Green Fulda custom cachet on front.
Rare registered express mail letter mailed from Hai Phong to Klewitz in June of 1979. It carries the Cuba set in pairs plus a range of other NVN stamps for an overall postage of 5.04 Dong. Bad Nauheim transit and Fulda arrival cancel on the reverse. Green Fulda custom cachet on front.
Registered letter sent to Klewitz in July of 1984. The letter carries a number of the Year of the Cild stamps plus the Cuba stamps for an overall postage of 9.64 Dong (including the red 2.40 Dong free frank). Unusual red HCM City cancel. Green Fulda custom cachet on front.
Registered letter sent from Nguyen Trai to Klewitz in August of 1982. The letter carries the Women Congress set plus other NVN stamps for an overall postage of 22.82 Dong (including the red free frank for 15.5 Dong). Cuban Independence stamp in front. Transit cancel on the reverse. Green Fulda custom cachet one front.
Rare registered letter sent from Nguyen Trai to Klewitz. The letter features the perforated and im-perforated stamp plus other NVN stamps for an overall postage of 12.64 (including the red free frank for 5 Dong). Im-perforated trial proofs are very rare on postally used cover. Cuban Revolution sets in font and back. Green Fulda custom cachet on front.
Registration Nr. 102695