Souvenir sheet issue "congress of the international philatelist association (FIP) ; international stamp exhibition (IBRA) Munich), variety "passer shiftings about 7, 5 mm the colours blackish yellow ochre (40 penny plus 20 penny) and pale ultramarine (70 penny plus 35 penny), on postage exceeding tariff rate airmail postcard to the United States, photo expertize Hans Dieter Schlegel BPP "the quality is perfect. " rare!