Catalog
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| Issuer | National Bank of Rwanda |
|---|---|
| Year | 2008 |
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| Composition | Log in to see details |
| Weight | 15.55 g |
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| Obverse description | Central field features the national coat of arms of Rwanda, depicting a sun above a knot design flanked by a shield with a sorghum stalk and coffee branch, with a basket below. The arms are rendered in full relief against a smooth field. A circular legend surrounds the device, with the issuer name arcing along the upper periphery and the denomination '500' prominently displayed at the base flanked by the word 'AMAFARANGA' to the left and 'MAGANA ATANU' to the right. |
|---|---|
| Obverse script | Latin |
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| Additional information |
Rwanda's niobium sports series, of which this is one piece, was struck at the Austrian Mint in Vienna — the same facility responsible for pioneering bimetallic niobium coinage with Austria's own €25 series beginning in 2003. The Austrians effectively held a monopoly on colored niobium coin production for years, and small issuing authorities like the National Bank of Rwanda contracted directly through them rather than striking domestically.
Niobium's distinctive color in these pieces results from anodization at a specific voltage during production, not paint or plating.