80 C. Postal stamp blackish orange, horizontal pair with overprint in type II, reverse as usual partial cancel of the Postmark \"Coudekerque business\" as authenticity marking, impeccable mint never hinged, expertized Dr. Dub, Pickenpack and expertise Lothar Herbst VP (2023) : \"the condition is perfect. Due to the small issue from only approximate 80 - 100 pairs are these stamps very rare. \", Michel 2.500.-