35 C. Charity issue \"J. Callot\" and 65 C. Charity issue \"Cathedral from Reims\" with hand stamp overprint in type I, properly franked mixed franking on cover from \"Dunkerque 10.07.40\" to Ghyvelde with on the back arrival stamp from 11.07.1940, faultless preservation, unsigned, expertise Lothar Herbst VP (2018) : \"the preservation is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. \", Michel 1.500.-