1,50 Rbl. on 15 Kopeks definitive, handstamped overprint type III (swastika 6 mm), horizontal pair with inverted overprint on left stamp, mint never hinged, perfect condition, unsigned, photo certificate Walter Zirath BPP (2025) "This stamp is among the greatest rarities of the German occupation issues of World War II.", Mi. 14.000.- Very rare and hardly ever offered! Only three such pairs known to date!