30 C. regular postage stamp "Mercury head" and 70 C. special issue stamp "Southern Frenchwoman (Languedoc)" with overprint in Type I, appropriate mixed franking on a letter from "Dunkerque 17. 07. 1940" to Ghyvelde with arrival postmark on the reverse dated "18. 07. 1940", flawless condition, examined by Calves, Roumet, Dreyfus, expertise by Lothar Herbst VP (2025) "The condition is impeccable. The stamps are known in very small quantities, therefore they are very rare.", Michel 700.-