Found this in dad's old wallet. I think that it is silver as I hear the 'ting' when I tap it with another coin but then I'm tone deaf. Would anyone know more about this coin I googled it but I am more confused as to the silver content etc..
Y# 492 50 CENTS 13.1000 g., 0.5000 Silver 0.2106 oz. ASW Obv: Crossed flags Obv. Leg.: Chung Hua Min Kuo (year) Nien