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 stamp from 3.7.40, signed Pickenpack and photo expertize autumn VP (2014) : "the condition is perfect, with the for this issue as usual perforation. The stamps are only in very small number of pieces recorded, therefore are they very rare are. "