2. 15 Fr. "collier" with overprint in type I as franking on postage exceeding tariff rate cover from "Dunkerque 1. 7. 40" (first day) to Arneke with reverse arrival postmark from 3. 7. 40, cover minimal blotched, the other condition is perfect, 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. ", Michel 1. 000.-