Souvenir sheet issue "stamp exhibition", plate flaw III "dot over right upper Block enclosure ornament" on cover with first day postmark "BERLIN W8 30.10.54", very fine, photo expertize Helmut Weigelt BPP "perfect, souvenir sheet 10 with the plate flaw III on First Day Cover might as unique to look at be. ", Michel for single stamps souvenir sheet already 400.-