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| Number | KM# 54b |
|---|---|
| Country | Singapore |
| Period | Republic of Singapore (1967 - 2025) |
| Currency | Singapore dollar |
| Coin type | Circulation coins |
| Denomination | 1 dollar |
| Currency rate | 1 SGD = 0.78 USD |
| Year | 1987 - 1991 |
| Edge type | Reeded with lettering |
| Edge description | REPUBLIC OF SINGAPORE (lion’s head) |
| Shape | Round |
| Alignment | Medal (0°) |
| Composition | Aluminium-Bronze |
| Weight (g) | 6.3 |
| Diameter (mm) | 22.4 |
| Thickness (mm) | 2.4 |
![]() | Coat of arms Legend Creators: Christopher Ironside |
|---|
![]() | Flowers Description Legend Creators: Christopher Ironside |
|---|
| Year | Mintage | Rarity | Value, USD | ||
|---|---|---|---|---|---|
| UNC | BU | Proof | |||
| 1991 | + | 70.000 | - | RR | $ 1.13 |
| 1990 | 37.608.000 | 100.000 | - | ||
| 1989 | 62.586.000 | 100.000 | - | ||
| 1988 | 59.332.000 | 120.000 | - | ||
| 1987 | 21.772.000 | 120.000 | - | ||
