Zaire 1979 River Expedition 10k (Diamond, Cotton Ball & Tobacco Leaf) block of 4, one stamp with two yellow flaws by cotton plant unmounted mint (as SG 955)
Zaire 1979 River Expedition 10k (Diamond, Cotton Ball & Tobacco Leaf) block of 4, one stamp with two yellow flaws by cotton plant unmounted mint (as SG 955)