Thanks Khai!
I wish to visit Hanoi again also. Last (and the only) time i was there it was 2004. We were near Hoan Kiem lake and actually seems that time i skipped post office
Was not so interested in stamps that moment.
Does wife of Mr. Khanh still sell something?
I hope maybe buy something later.
By the way - i asked about real postal covers with 2 stamps you need. so far no luck... Seems people here mostly collect FDC.