| Issuer | Singapore |
| Year | 1987-1991 |
| Type | Standard circulation coin |
| Value | 1 Dollar |
| Currency | Dollar (1967-date) |
| Composition | Aluminium bronze |
| Weight | 6.3 g |
| Dimensions | 22.4 mm |
| Thickness | 2.5 mm |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | Christopher Ironside |
| In circulation to | |
| Reference(s) | KM#54b, Schön#45 |
| Obverse description | Emblem with date underneath and `Singapore` on four sides in English, Tamil, Chinese, and Malay. |
| Obverse script | |
| Obverse lettering | SINGAPURA
சிங்கப்பூர் 新加坡
1990
SINGAPORE (Translation: Singapore) |
| Reverse description | Periwinkle Flower (Lochnera Rosea) with denomination |
| Reverse script | |
| Reverse lettering | ONE DOLLAR $1 |
| Edge | Reeded with inscription |
| Mint | |
| Mintage | 1987 - - 21 772 000 1988 - - 59 452 000 1989 - - 62 686 000 1990 - - 37 708 000 1991 - In sets only - 70 000 |
| Catalog ID | 6434142840 |
| Comments |
