50 C. Postal stamp "peace allegory" (base stamp type II) with overprint "Occupied area North France" in type I, variety "inverted overprint", properly franking on cover from "St. Pole sur Mer 28.07.1940" to Dunkerque with arrival postmark on the back from 29.07.1940, very fine, expertized Calves and expertise Lothar Herbst VP (2023) "the condition is perfect. The stamps are only in small number of pieces known, therefore are they rare. The cancel St. Pole sur Mer is rare. ", Michel 800.-