Zaire 1979 River Expedition 25k Inzia Falls imperf proof pair with superb misplaced colours - yellow by 2mm and red by 3mm unmounted mint (as SG 958)*
Zaire 1979 River Expedition 25k Inzia Falls imperf proof pair with superb misplaced colours - yellow by 2mm and red by 3mm unmounted mint (as SG 958)*