1 Fr. "Marshall Foch" and 70 C. "Debussy" with overprint in type I as mixed franking on postage exceeding tariff rate cover from "Dunkerque 1. 8. 40" to Bailleul with reverse arrival postmark from 2. 8. 40, left stamp left a little to the tips of the teeth shaded (insignificant), cover right a little blotched, signed Pickenpack and certificate with photograph autumn VP (2014) : "the stamps are only in very small number of pieces recorded, so that they very rare are. The postmark "Bailleul" is very rare. ", Michel 1. 000.-