50 C. postage stamp "Allegory of Peace (Early Issue Type II), horizontal pair with overprint "Occupied Territory Northern France" in Type I as a valid postage on a letter from "Ghyvelde 29. 07. 1940" to Dunkerque with a reverse arrival stamp dated 30. 07. 1940, forwarding address removed and overwritten, the stamps are known only in small quantities, therefore they are rare, expertise by Lothar Herbst VP (2024) "The condition of the stamp is flawless.", Michel 600.-