カタログ
| 表面の説明 | The Nigerian coat of arms displayed centrally in the field, featuring a black shield bearing a white pall wavy, surmounted by an eagle displayed. Two white horses serve as supporters on either side of the shield, which rests upon a base of green and white coctus spectabilis flowers. The upper legend reads FEDERAL REPUBLIC OF NIGERIA, with the lower legend UNITY AND FAITH, PEACE AND PROGRESS flanking the date 1991. |
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| 表面の文字体系 | ログイン して詳細を見る |
| 表面の銘文 | FEDERAL REPUBLIC OF NIGERIA UNITY AND FAITH, PEACE AND PROGRESS 1991 |
| 裏面の説明 | ログイン して詳細を見る |
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| 縁 | ログイン して詳細を見る |
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| 追加情報 |
Nigeria switched from aluminum to copper-plated steel for this denomination in 1991 as part of a broader coinage reform driven by metal cost pressures and chronic shortages of small-denomination coins in circulation. The Kobo series had been undermined for years by the simple economics of hoarding — the metal value of earlier issues periodically approached face value, pulling coins out of the cash economy entirely.