10 Rbl. on 1 Rouble definitive black/dark red, overprint type III, "double overprint" variety, mint never hinged, perfect condition, rarity of the German occupation issues of World War II, expertised Keiler and photo certificate Walter Zirath BPP (2025) "The condition is faultless, as the perforations are typical for this issue. This stamp is among the greatest rarities of the German occupation issues of World War II.", Mi. -.- - only three examples with double overprint known to date.