Dichalkon: Ancient Greek Bronze Coin of Olbia

Illustrated Specimen Details: Dichalkon

Example Specimen: City-state Olbia, 360-350 BC

The coin shown above is a bronze dichalkon issued by the ancient Greek city-state of Olbia (located near the modern village of Parutyne, Ukraine). The obverse depicts the bust of Tyche, the goddess of fortune and fate, serving as a patron deity.

The reverse features an archer in a kneeling position, preparing his bow. Although the inscriptions on this particular ancient specimen are worn, the standard legend for such issues is ОΛВIO.

1. OLBIA (400-90 BC): 1 dichalkon = 2 chalkoi = 1/4 obol
2. PANTICAPAEUM (320-30 BC): 1 dichalkon = 2 chalkoi = 1/4 obol
3. CHERSONESOS (350 BC - 170 AD): 1 dichalkon = 2 chalkoi = 1/4 obol

...AND MANY OTHER ISSUERS — ancient Greek city-states in Europe, Asia and Africa.

The name of the coin (dichalkon) comes from the Greek "δίχалкоv", meaning twice the value of a chalkon (chalkous). It functioned as a foundational fractional bronze denomination within the monetary systems of the ancient world.

History and Role of the Dichalkon in Antiquity

The initial minting of the dichalkon occurred in the 4th century BC, initiating a prolonged period of circulation spanning the Hellenistic era and extending well into the Roman provincial period. This denomination was utilized across a vast geographic expanse, from mainland Greece to the Seleucid and Ptolemaic Empires, as well as the poleis of the Northern Pontic region, such as Panticapaeum and Olbia.

Metrology and Iconography

Metrologically, the dichalkon occupied a subordinate position, facilitating low-value, localized economic transactions. Its iconography exhibited significant regional variability:

• Obverse: Predominantly featured portraits of major deities like Athena, Apollo, Zeus, or Dionysus.
• Reverse: Frequently incorporated civic badges or symbols, such as the Athenian owl, the Corinthian Pegasus, the Panticapaean griffin, or the Olbian archer.

Numismatic Significance

Within contemporary numismatics, the dichalkon provides critical primary data for the reconstruction of ancient microeconomics and market integration. While historically important, mass-struck issues remain highly accessible to collectors, frequently appearing in the price range of 10 to 20 USD in Fine condition.