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Æ25 - Valerian and Gallienus ΝΙΚΑΙΕΩΝ
| Issuer | Nicaea (Bithynia and Pontus) |
|---|---|
| Year | 253-268 |
| Type | Standard circulation coin |
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| Obverse description | Radiate, draped and cuirassed bust of Gallienus facing right, seen from the front, with the radiate crown rendered in low relief. The Greek legend encircles the bust in the outer field, reading ΠΟ ΛΙ ΕΓ ΓΑΛΛΙΗΝΟϹ ϹΕ, abbreviating the emperor's full titulature Publius Licinius Egnatius Gallienus Augustus. A small central perforation pierces the flan, a post-antique alteration. The coin exhibits a warm brown patina with traces of green cuprite. |
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| Mintage | ND (253-268) |
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Nicaea's civic bronze coinage under the joint reign of Valerian I and Gallienus reflects the administrative peculiarity of that period — a formal co-emperorship in which the senior Augustus controlled the East while Gallienus managed the West, leaving provincial mints like Nicaea operating under a dual imperial authority that would dissolve with Valerian's catastrophic capture by Shapur I at the Battle of Edessa in 260 AD. After that capture, Nicaea's allegiance shifted entirely to Gallienus, making coins naming both rulers dateable to before 260.