20 C. Postage stamps issue "Merkur head", 5 C. Postage stamps issue "allegory, type Blanc" and 75 C. Postage stamps issue "Paul Doumer" with overprint in type I, correctly franked multiple franking on small-format ladies cover from Dunkerque 4.7.1940 to Ghyvelde with on the back arrival stamp from 5.07.1940, 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. The postal stamp Michel-no. 50 (original stamp France no. 90) is so far the eldest stamp from France (year 1900), the in Dunkirk the overprint got, there they hitherto still postally valid was. ", Michel 2.200.-