The ancient Greek "Tetradrachm" coin from Athens, popularly known as the "Athenian Owl" coin. This silver coin was one of the most widespread and accepted currencies in the ancient Greek world. Coin Details Obverse (right in the image): Depicts the head of the goddess Athena, the Greek goddess of wisdom, war, and arts, wearing a helmet adorned with olive leaves. Reverse (left in the image): Depicts an owl, the sacred animal of the goddess Athena and a symbol of wisdom, alongside an olive branch and a crescent moon. Inscriptions: Features the Greek letters " ", an abbreviation for the name of the city of Athens. Historical Significance Time Period: The design of this coin primarily dates back to the period between 525 and 510 BC, and it continued to be used for centuries with minor changes. The coin displayed is approximately 2300 to 2500 years old. Value: The "Tetradrachm" was equivalent to four Greek drachmas. I have owned the coin for over twenty years, and the asking price is based on the best offer. If you have more information and details, you can message me, thank you.