90 C. Plus 35 C. Charity issue \"Red Cross\" with overprint \"Occupied area in North France\" in type II, variety \"inverted overprint\", impeccable unused with full original gum (hinge removed), expertized Calves, Brun, Georg Buehler and expertise Lothar Herbst VP (2023) : \"due to the very small edition from only approximate 80 - 100 pieces are these stamps very rare. The Michel number 36 II K is the me first known stamp. \" unique!