40 C. Plusplus 60 C. Charity issue "Parisian Postal Museum" with overprint in type II, in perfect condition unused with full original gum and small rest of hinge, reverse partial cancel of the authentic Postmark from "Coudekerque business" and signatur of the post office leader as authenticity confirmation, unsigned, photo expertize Lothar Herbst VP (2017) : "the condition is perfect. Due to the very small edition from only approximate 80 - 100 pieces are these stamps very rare. "