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| Number | KM# 21 |
|---|---|
| Country | Comoros |
| Period | Union of the Comoros (1975 - 2020) |
| Currency | Comorian franc |
| Coin type | Commemorative coins |
| Denomination | 250 francs |
| Year | 2013 - 2020 |
| Subject | 30th Anniversary - Central Bank |
| Edge type | Smooth |
| Shape | Round |
| Alignment | Coin (180°) |
| Composition | Bi-Metallic: Stainless Steel center, Copper-Aluminium-Zinc-Tin ring |
| Weight (g) | 8.5 |
| Diameter (mm) | 28.5 |
| Thickness (mm) | 2 |
![]() | Coat of arms Legend |
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![]() | Legend |
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| Year | Mintage | Rarity | Value, USD | ||
|---|---|---|---|---|---|
| UNC | BU | Proof | |||
| 2020 | + | - | - | RRR | $ 5.53 |
| 2013 | + | - | - | ||
