Catalog
| Issuer | Central Bank of Nigeria |
|---|---|
| Year | 1991 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Copper plated steel |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
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| Technique | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | FEDERAL REPUBLIC OF NIGERIA UNITY AND FAITH, PEACE AND PROGRESS 1991 |
| Reverse description | Log in to see details |
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| Reverse lettering | 25 kobo |
| Edge | Log in to see details |
| Mint | Log in to see details |
| Mintage | Log in to see details |
| Additional information |
The shift to copper-plated steel for this type reflects Nigeria's broader coinage reforms of the early 1990s, driven by rising base metal costs and a structural adjustment program that was reshaping the country's fiscal architecture. The older nickel-brass 25 Kobo had become too expensive to produce relative to its face value — a familiar problem for low-denomination coinage in economies under currency stress.