1 Rbl. on 10 Kopek postage stamp, handstamped overprint in Type III (swastika 4 mm), mint never hinged, flawless condition, edition of only 15 copies, certified by E Keiler and photo certificate Walter Zirath BPP "The condition is impeccable... one of the greatest rarities of the German occupation issues during World War II", Michel 30.000.- - rarely offered rarity!