Thought I'd bump this old posting back up.
More than 120 mints are known to have issued coinage of the Alexandrine type.
Note the Seleucid anchor on the reverse side. This is just one of well more than a thousand symbol and monogram combinations that appear on coins of this series. Although the style, fabric, and other elements of these coins would change in very noticeable ways depending on both the mint and date, the Heracles-Zeus design would be struck well into the first century B.C., a remarkable lifespan for any coin type.
Something to do in my spare time; unless someone else can answer the Q.
Don in SoCal