50 C. Postal stamp \"Merkur head\" with overprint \"Occupied area North France\" in type I, properly franking on cover from \"Arneke 06.08.1940\" to Dunkerque with arrival postmark on the back from 07.08.1940, faultless condition, expertized Calves and expertise Lothar Herbst VP (2023) \"the condition is perfect. \", Michel 600.-