The Tetarteron nomisma was a Byzantine gold coin introduced during the mid-11th century, specifically minted between 1059 and 1067 during a period of significant monetary reform in the Eastern Roman Empire. This denomination represented a quarter of the standard nomisma and was created as part of Emperor Constantine IX’s attempt to address economic pressures and debasement issues that had begun to affect Byzantine coinage. This Teterteron nomisma from the reign of Constantine X earned a Choice About Uncirculated grade from the Numismatic Guaranty Corporation (NGC), and includes a 3/5 strike and 4/5 surface designation. Right now, the Byzantine Empire Constantine X Tetar Nomisma is available from JM Bullion.
Coin Highlights:
This Byzantine Empire Constantine X Tetar Nomisma is a Choice About Uncirculated specimen struck on an irregular, hammered flan, or blank. The coin has a beaded border on the obverse with a bright, satin surface. This coin has a modest 3/5 strike grade, indicating an average strike that is largely centered within the field. The 4/5 surface grade indicates a coin with minimal wear and tear for its age.
During the reign of Constantine X (1059-1067), the tetarteron nomisma continued to be minted as part of the dual system alongside the histamenon nomisma. Constantine X faced considerable economic challenges, including continued debasement of the gold coinage that had begun under his predecessors, which undermined confidence in Byzantine currency. The tetarteron from this period reflects the empire’s struggle to maintain monetary stability while managing military expenses and administrative costs.
The design of Constantine X’s Byzantine Empire Tetar Nomisma typically featured the emperor on the reverse, often depicted standing or enthroned and holding the traditional symbols of imperial authority, such as the labarum or globus cruciger. The obverse commonly displayed Christ Pantocrator or the Virgin Mary, emphasizing the divine sanction of imperial rule that was central to Byzantine political theology.
If you have any questions about ancient gold coins, please feel free to ask. JM Bullion customer service is available at 800-276-6508, online using our web chat, and via our email address.

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The Tetarteron nomisma was a Byzantine gold coin introduced during the mid-11th century, specifically minted between 1059 and 1067 during a period of significant monetary reform in the Eastern Roman Empire. This denomination represented a quarter of the standard nomisma and was created as part of Emperor Constantine IX’s attempt to address economic pressures and debasement issues that had begun to affect Byzantine coinage. This Teterteron nomisma from the reign of Constantine X earned a Choice About Uncirculated grade from the Numismatic Guaranty Corporation (NGC), and includes a 3/5 strike and 4/5 surface designation. Right now, the Byzantine Empire Constantine X Tetar Nomisma is available from JM Bullion.
Coin Highlights:
This Byzantine Empire Constantine X Tetar Nomisma is a Choice About Uncirculated specimen struck on an irregular, hammered flan, or blank. The coin has a beaded border on the obverse with a bright, satin surface. This coin has a modest 3/5 strike grade, indicating an average strike that is largely centered within the field. The 4/5 surface grade indicates a coin with minimal wear and tear for its age.
During the reign of Constantine X (1059-1067), the tetarteron nomisma continued to be minted as part of the dual system alongside the histamenon nomisma. Constantine X faced considerable economic challenges, including continued debasement of the gold coinage that had begun under his predecessors, which undermined confidence in Byzantine currency. The tetarteron from this period reflects the empire’s struggle to maintain monetary stability while managing military expenses and administrative costs.
The design of Constantine X’s Byzantine Empire Tetar Nomisma typically featured the emperor on the reverse, often depicted standing or enthroned and holding the traditional symbols of imperial authority, such as the labarum or globus cruciger. The obverse commonly displayed Christ Pantocrator or the Virgin Mary, emphasizing the divine sanction of imperial rule that was central to Byzantine political theology.
If you have any questions about ancient gold coins, please feel free to ask. JM Bullion customer service is available at 800-276-6508, online using our web chat, and via our email address.