90 C. postal stamps bright ultramarin in the horizontal pair 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" as well signatur of the post office leader as authenticity confirmation, unsigned, photo expertize Lothar autumn VP (2017) : "the condition is perfect. Due to the very small printing from only approximate 80 to 100 pairs are these stamps very rare. "