DDR-TIBET: 1953, airmail cover to Lhasa, Tibet, with DDR 1-2 dm. tied by cds. "SONDERSHAUSEN 12. 4. 54.", franked on transit at Gyantse with Tibet 2 t. red (horizontal pair) tied by cds. "GYANTSE", from there forwarded to Lhasa; some wrinkles, still fine and very scarce mixed franking, certificate Flack (2007)
