30 C. Postal stamp "Semeuse" and 70 C. Charity issue "national monument Boulonge-sur-Mer" with overprint in type I, letter piece with first day cancel "Dunkerque 1.07.40", faultless condition, expertise Lothar Herbst VP (2019) : "the condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. ", Michel 900.-