KM# 112 DOLLAR (Holey Dollar)31.1000 g., 0.9990 Silver 0.9988 oz. ASW Ruler: Elizabeth IISubject: Aboriginal Culture Obv: Holey dollar with legend aroundRev: Holey dollar with snake around eating its tail Note: The“outer ring” coin issued with the center “plug” 25 cents, KM#113. Australia Australia 1988