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| Number | KM# 20 |
|---|---|
| Country | Brunei |
| Period | State of Brunei (1967 - 2024) |
| Ruler | Hassanal Bolkiah |
| Currency | Brunei dollar |
| Coin type | Circulation coins |
| Denomination | 1 dollar |
| Currency rate | 1 BND = 0.78 USD |
| Year | 1979 - 1992 |
| Edge type | Reeded with a groove |
| Shape | Round |
| Alignment | Medal (0°) |
| Composition | Copper-Nickel |
| Weight (g) | 17 |
| Diameter (mm) | 33.2 |
| Thickness (mm) | 2.55 |
![]() | Royal family Description Legend |
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![]() | Weapon Description Legend |
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| Year | Mintage | Rarity | Value, USD | ||
|---|---|---|---|---|---|
| UNC | BU | Proof | |||
| 1992 | - | + | - | RRR | - |
| 1991 | - | 3.000 | - | - | |
| 1990 | - | 3.000 | - | - | |
| 1989 | - | 2.000 | - | - | |
| 1988 | - | 2.000 | - | - | |
| 1987 | - | 3.000 | - | - | |
| 1986 | - | 10.000 | 7.000 | ||
| 1985 | - | 15.000 | 10.000 | ||
| 1984 | - | 5.000 | 3.000 | - | |
| 1979 | - | - | 10.000 | ||
