30 C. Postage stamps issue \"Merkur head\" and 70 cent special edition \"congress of the american legion in Paris\" with overprint \"Occupied area North France\" in type I, properly franked mixed franking on cover from \"Dunkerque 12.7.1940\" to Ghyvelde with arrival postmark on the back from 13.07.1940, faultless condition, expertized Calves, Dreyfuss, Roumet, Tust BPP and expertise Lothar Herbst VP (2023) : \"the condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. \", Michel 1.000.-