VIETNAM (NORTH) - Czechoslovakia. 1955 picture postcard, franked with surcharged 10d/100d brown (blue surcharge type I), 20d/200d red (black Latin numerals) in addition to imperforate 150d Soldier issue. All cancelled by HA-NOI c.d.s. Very rare and attractive commercial usage of surcharged stamps in good condition. Michel 18aI,21IaII,25. (Photo). Est. 300 - 400 CHF.