45 C. Postal stamp \"Merkur head and 55 C. Postal stamp \"peace allegory\" with overprint \"Occupied area North France\" in type I, on front of covers with cancellation \"Dunkerque 18.07.1940\", faultless condition, expertized Roumet, Calves among others as well 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 700.-