Catalog
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| Issuer | Roman Imperial Mint (Alexandria) |
|---|---|
| Year | 141-142 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Billon |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
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| Technique | Log in to see details |
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| In circulation to | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | Log in to see details |
| Reverse description | Draped bust of Isis facing right, wearing the distinctive crown of Isis composed of a solar disc flanked by cow horns surmounted by double plumes, her elaborately braided and coiffed hair falling to her shoulders in characteristic Alexandrian fashion. The goddess is shown with a jewelled necklace and draped garment visible at the truncation. The regnal year date L Ε (Year 5) appears divided in the field to either side of the bust, confirming the issue to the fifth year of Antoninus Pius's reign (141–142 AD). |
| Reverse script | Log in to see details |
| Reverse lettering | L Ε |
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| Additional information |
The regnal year marker L Ε — year five of Antoninus Pius — places this issue squarely in 141/142 AD, a period when the Alexandria mint was producing billon tetradrachms at high volume to service Egypt's closed currency system. Egypt operated as a monetary isolate under Roman rule: foreign coins were confiscated at the border and exchanged for local issues, a policy that makes Alexandrian tetradrachms essentially self-contained as a series. The billon content had already been degraded well below the old Ptolemaic standard by this point, a slide that would continue under successive emperors.