|Measurements and composition|
medallic (12h axis)
Castor and Pollux riding horses
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The 20 stater coin was issued by the Greco-Bactrian Kingdom, a Hellenistic nation located in what is now Central Asia, during the reign of King Eucratides I between 170 and 145 BC. It is today considered one of the most famous ancient coins, and because of its immense size it has been deemed the world's largest coin of antiquity.
Only one example of the 20 stater coin is known to exist. It was originally found in Bukhara and was later acquired by Emperor Napoleon III of France. After the emperor's death, the coin was received by the Cabinet des Médailles in Paris, where it is currently on display.
The 20 stater coin is composed of gold. It weighs a massive 169.2 grams and measures approximately 58 millimeters in diameter. The coin is round in shape, like many highly denominated coins issued during the time period. A right-facing likeness of King Eucratides wearing a plumed helmet decorated with a bull's ear and horn is displayed on the obverse, encircled by a decorative border. The reverse features an image of the Dioscuri Castor and Pollux on horseback with spears and palm branches in their hands. The Greek legend "ΒΑΣΙΛΕΩΣ ΜΕΓΑΛΟΥ ΕΥΚΡΑΤΙΔΟΥ" (English: "of Great King Eucratides") is inscribed on the reverse, with the first two words printed above the Dioscuri and the last word written below the two twins. The mint monogram is also present below the image of the men on horseback.