50 C. Postage stamps issue "peace allegory with new value 50 C. " with overprint in type I, properly franked multiple franking on cover from "Ghyvelde 23.07.1940" to Dunkirk with reverse arrival postmark from "24.07.1940", very fine, expertized Calves, Dreyfus, Roumet and expertise Lothar Herbst VP (2025) "the condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. ", Michel 1.700.-