Thanks Khai!
Interesting that before vietnamese catalog had circulations of older stamps. I wonder why now they removed this information because it's useful and interesting...
And i think if it was printed 1 mil copies stamp should be much cheaper... Because okey, they winthdraw it but it means if it was not destroyed it still lie somewhere. Last time in Saigon Cotevina office woman showed me only 2 available stamp and one was so so condition...