Metal wall sculpture with fish from the United States around 1970

A very beautiful piece that comes from the united states and represents an era, that of the 60s/70s when many artists' workshops who worked metal made this type of sculptures, both on the east and west coasts. It is a wall sculpture in iron, brass and copper made completely by hand. Not signed but similar to those of friedle or charles, among others. It seems that two fish have lost their tails but we are not sure because we do not know the original design. Dimensions: 72 cm * 38 cm * 11 cm.