1.50 Fr. "general Gallieni" as a single franking on postage exceeding tariff rate cover from "Dunkerque 1. 7. 40" (first day) to Bourbourg with reverse arrival postmark from 2. 7. 40, signed Zierer and certificate with photograph autumn VP (2014) : "the condition is perfect. The stamps are only in very small number of pieces recorded, so that they very rare are. The postmark "Bourbourg" is very rare. ", Michel 1. 000.-