15 C. Merkur head (2) and 70 C. Merkur head with overprint \"Occupied area North France\" in type I as properly franking on cover from \"Dunkerque 03.07.1940\" to Ghyvelde with arrival postmark on the back from 04.07.40, faultless condition, only in very small number of pieces known, expertized Pickenpack BPP, pierre Mayer, Roumet and expertise Lothar Herbst VP (2023) \"the condition is perfect. \", Michel 1.200.-