10 Rbl. on 1 Ruble stamp, black / dark red, overprint in Type III, variety "double overprint", mint never hinged, flawless condition, rarity of German occupation issues during World War II, certified by Keiler and photo certificate Walter Zirath BPP (2025) "The condition is flawless, as the perforation is typical for this issue. This stamp is one of the greatest rarities of the German occupation issues during World War II.", Michel -.- - to date, only three examples with double overprint are known.