25 C. Merkur head (2) and 50 C. Charity issue "attic" with hand stamp overprint in type I, correctly franked mixed franking on cover from Ghyvelde 21.07.1940 to Dunkerque with on the back arrival stamp from 22.07.1940, in perfect condition, expertise Lothar Herbst VP (2018) : "the Michel no. 112 has left a vertical inconspicuous manufactured paper fold, the already before the affix of the stamp was available. The other condition is perfect. The stamps are only in very small number of pieces known, therefore are they very rare. ", Michel 1.400.-