5 C. Postal stamp \"Merkur head\", carmine, horizontal pair with overprint \"Occupied area North France\" in type II, mint never hinged, right stamp on gum side a browning as well perforation at the bottom a little irregular, otherwise faultless condition, reverse postmark \"Coudekerque business\" as authenticity confirmation, issued only 80 - 100 pairs, expertized Ceres, Brun and expertise Lothar Herbst VP (2023), Michel 2.500.-