50 C. "Peace Allegory" definitive (basic stamp type II), "Occupied Territory Northern France" overprint type I, variety "Inverted overprint", correct franking on letter "Dunkerque 8.07.1940" to Arneke, arrival 8.07.1940 on reverse, perfect condition, signed Fourcoult, Calves, Lothar Herbst VP expert opinion (2025): "Condition faultless. Stamps known in only small numbers and therefore rare.", Mi. 800.-