Communist Shipyard Union

Overstruck, on what appears to be a Chinese Empire ten cash coin, the best estimation is that this medal or token is a Soviet era shipyard union piece. The character style is unusual and modern, evocative of western influence. My speculation at this point is that it's from Shanghai. I'm seeking a volunteer to translate this piece - please contact me at moneta@moneta-coins.com if you have a clue what this piece represents.