5 C. And 15 C. Postal stamps \"Merkur head and 80 C. Postal stamp \"peace allegory\" with overprint \"Occupied area North France\" in type I, properly franked mixed franking on cover from \"Dunkerque 21.07.1940\" to Ghyvelde with arrival postmark on the back from 22.07.1940, faultless condition, expertized Dreyfuss, Ceres, Roumet 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 1.300.-