50 C. \"Merkur head\" with overprint \"Occupied area North France in type I\", vertical pair as properly franking on local letter with cancellation \"Dunkerque 25.07.1940\", the already overprinted pair became faked separated thus the single stamps together on this letter franked, use- and transport traces, issued only 3.000 pairs, expertise Lothar Herbst VP (2023) \"the condition of the stamps is perfect. Through grobe opening is absent reverse the upper letter flap. \", Michel 600.-