I own a coin that is very similar to these. It has Alexander's face on one side, and a figure on a throne holding a bird on his outstretched arm. He has his other arm on what might be a spear, or he's about to do a pole-dance. I always figured it was Alexander, interesting to know that it's Zeus. I got it in a shop in London, and was told that it was probably from about a century after Alexander's death.