2 C. postal stamp black opal green with vertical overprint in type II, unused with original gum and clean small hinge, so far only 5 examples - all unused / mint never hinged / without gum known, signed Dreyfus and expertise Lothar Herbst VP (2024) "the condition is perfect. a extremely rare rarity. ", Michel 3.000.- - we can these truly scarce variety with of this stamp offer for the first time!