This gold coin was issued by Philip of Macedon, the father of Alexander the Great. It was called a 'philippic', in other words, the gold coin issued by Philip. Philipics were circulated widely in the Balkans, where they were used by various Celtic tribes. The Celts eventually began making their own versions of these coins and, over the decades, the designs were misunderstood and adapted. By the time philippics reached Britain, the chariot design had disintegrated to a stylised Celtic horse and a stray wheel.