Singapore, 1988 AD., Republic, 1 Dollar, KM 54b.

Singapore, Republic, engraver: Christopher Ironside (reverse), 1988 AD.,
1 Dollar (23,3 mm / 6,36 g), aluminum-bronze, 6,29 g. theor. mint weight, mintage 59,332,000 , medal alignment ↑↑ (0°), reeded edge with incuse inscription "REPUBLIC OF SINGAPORE",
Obv.: SINGAPURA - 新加坡 - SINGAPORE - சிங்கப்பூர் / MAJULAH SINGAPURA / 1988 , "SINGAPORE" in the four official languages around Singapore arms with supporters in center, date below.
Rev.: ONE DOLLAR / $ 1 , periwinkle flower (bot.: Lochnera rosea) with leaves.
KM 54b .

Year / Mintage
1987 21,772,000
1988 59,332,000
1989 62,586,000
1990 37,608,000
1991 ?