The obverse of a tetradrachm coin minted during the reign of Perseus of Macedon (179-168 BC), the last king of Macedonia before the Roman conquest (if the later pretender to the throne Andriscus is to be discounted). [Unknown Artist / PHGCOM (Own work by uploader, photographed at the British Museum) -- Public domain -- http://commons.wikimedia.org/wiki/File:Perseus of Macedon BM.jpg]