KM# 27 BALBOA26.7300 g., 0.9000 Silver 0.7734 oz. ASW, 38.1 mm. Obv:National coat of arms Rev: Armored bust left Edge: ReededNote: More than 200,000 of 1966 dates were melted down in1971 for silver for the 20 Balboas. Varieties exist.Panama