Catalog
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| Issuer | Koinon of Thessaly (Achaea) |
|---|---|
| Year | 253-260 |
| Type | Standard circulation coin |
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| Composition | Log in to see details |
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| Diameter | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Greek |
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| Reverse description | Log in to see details |
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| Reverse lettering | ΚΟΙΝΟΝ ΘΕϹϹΑΛΩΝ, Δ (Translation: Koinon of the Thessalians, 4) |
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| Additional information |
The Thessalian Koinon was a federal league whose coinage rights under Roman rule were carefully negotiated rather than assumed — provincial bronze issues like this one required imperial sanction, and the joint naming of Valerian and Gallienus as co-emperors dates the issue precisely to the period after Gallienus was elevated to Augustus in 253. The Δ countermark denotes a denomination within the Koinon's internal tariff system, a feature specific to Thessalian federal issues and not replicated in neighboring provincial mints.