50 Heller on 25 Heller postal stamp, vertical block of ten from lower margin - the two of them lower vertical pairs as type pairs "fatter and thin overprint" in perfect condition mint never hinged, the six upper values unused, right upper value with spot, very scarce unit, expertized Dr. Dub and expertise Brunel VP (2021) : "the upper 3 pairs wise slight affixed spots on and the right value above has a spot, the other condition is perfect mint never hinged. The unit is rare. ", Michel 2.240.-+plus