30 C. Postage stamps issue \"Aristide Briand\" and 70 cent charity issue \"Births decline\" with hand stamp overprint \"Occupied area North France\" in type I, properly franked mixed franking on first days letter from \"Dunkerque 1.07.40\" to Ghyvelde with arrival postmark on the back from 02.07.1940, 70 C. Above a shortened tooth, otherwise faultless condition, expertized Ceres, Roumet among others as well expertise Lothar Herbst VP (2023) : \"the other condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. \", Michel 1.800.-