35 C. Postal stamp "Semeuse" and 65 C. Charity issue "social auxiliary work the gown" with overprint in type I, correctly franked mixed franking on first days cover from "Dunkerque 1.07.1940" to Ghyvelde with reverse arrival postmark from "2.07.1940", faultless condition, expertise Lothar Herbst VP (2018) : "the condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. ", Michel 1.500.-