50 C. Special edition \"500 anniversary the waiver of orleans\" with overprint in type I, properly franked multiple franking on small-format ladies letter from Dunkerque 4.7.1940 to Ghyvelde with on the back arrival stamp from 5.07.1940, faultless preservation, expertise Lothar Herbst VP (2019) : \"the preservation is perfect. The stamps are general only in very small number of pieces known, therefore are they very rare. The existing vertical pair with advertising appendage comes not from sheet, but rather from the stamp booklet. Stamps from booklet (MH) as multiple franking are extremely rare. \", Michel 2.400.-