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Aureus - Diocletianus COS III
| Issuer | Roman Empire (27 BC - 395 AD) |
|---|---|
| Year | 287-290 |
| Type | Standard circulation coin |
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|---|---|
| Obverse script | Latin |
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| Reverse description | The Emperor Diocletian, depicted in military attire — draped and cuirassed — rides on horseback to the right, his raised right hand extended in a gesture of salutation or command. The horse is shown in a spirited prancing pose with forelegs raised. The two-word legend COS III is disposed in the field to either side of the equestrian group, flanked by a border of beaded dots. No exergue line or mintmark is visible, consistent with early Tetrarchic aureus production. |
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| Additional information |
Diocletian's third consulship fell across a period of mounting administrative strain, as he began laying groundwork for what would become the Tetrarchic system — formally established in 293. The gold coinage of this transitional window is stylistically uneven, reflecting the absorbing of multiple regional mint traditions under centralizing imperial pressure. Antioch, Siscia, and Ticinum each produced aurei for Diocletian in this period with measurably different die-cutting habits.
RIC V.2 #287 is a Siscia attribution. The mint had been recaptured from the usurper Carinus only shortly before these issues began.