The tetradrachm of the city of Athens is the oldest money found in the area of the city of Belgrade. This type of tetradrachm had been minted in 393 B.C. and throughout the 4th century and belongs to the coins minted in the old style. The finding is associated with the presence of the Celts, i.e. Scordisci in the area between the Sava and the Danube and their contact with the Hellenic world in the south. The obverse shows the head of the goddess of wisdom and protector of the city of Athens. The reverse depicts an owl – the symbol of the goddess Athena and the letters ΑΘΕ. Behind the owl is a crescent and an olive branch.