1964 Nigeria M159/B4b 1964 Olympiad Tokio
1980 Nigeria M366-367 Football
1980 Nigeria M368-371 1980 Olympiad Moskva
1982 Nigeria M400+403 Butterflies
1983 Nigeria M421-424 Sea fauna
1984 Nigeria M431-434 Fauna
1984 Nigeria M446-449 Rare birds
1984 Nigeria Michel 438-441 1984 Olympiad Los Angeles 2.50 €
1987 Nigeria M499-502 Sea fauna
1988 Nigeria M524-526 1988 Olympiad Seoul
1988 Nigeria Michel 524-526b 1988 Olympiad Seoul rare
1992 Nigeria M579-582 1992 Olympiad Barselona
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