Bidspirit auction | 1968 15 np Triennale Blk
1968 15 np Triennale Blk of 6,used from FPO 744 (Vientiance) during May 1968 before the introduction of ICC Overprint stamps. Postmark has unusual variety .
1968 15 np Triennale Blk of 6,used from FPO 744 (Vientiance) during May 1968 before the introduction of ICC Overprint stamps. Postmark has unusual variety .