Coinage of the Achaemenid Empire was struck in gold and silver and can be broken down into four different design types. Type 1 was struck in silver only and is very rare in any condition. Type 2 was struck in both gold and silver and has the Hero-King with a drawn bow. Type 3 was struck in both metals and has the King with a bow and spear. Type 4 was struck in both metals and has the King with a bow and knife.