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The semis (“SEH-miss”) coin was worth half of an as, and was first made in 280 BC. After the Roman Republic came to an end, the semis was continued into the Roman Empire. However, it was never a regularly-issued coin, and the production of semisses ended with the reign of Hadrian (117 — 138 AD).
Note that the translation for semis in Italian is semisse; look for that term in sales listings which may include Italian-speaking sellers.
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Extremely Rare 27BC-1 BC Coin Roman Baetica Osset Augustus Male Figure Celtic
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Bruttium, Vibo Valentia, AE semis, c. 193-150 BC, Hera/double cornucopia
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ROMAN IMPERIAL PERIOD Semis Trajan Decius, 249-251 Original Coin #GFT174
$146.77
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Trajan AE Semis | 23mm, 7.4g | Provincial Circulation | Attractive!
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NGC Emperor Hadrian 117-138 AD Genuine Certified Ancient Roman Coin Semis
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Turdetani People Celtic Iberian Coin City of Carmo 81-80BC Extremely Rare
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Extremely Rare 30BC Coin Roman Province Baetica Carteia Augustus Apollo Lyre
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Fortuna Neptune 27BC-14AD Coin Roman Province Baetica Carteia Augustus Very Rare
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ANCIENT ROMAN COIN OF AUGUSTUS! PHILIPPI MINT! MILTARY STANDARDS!
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NGC Very Rare 27BC-14AD Irippo Augustus Female Seated Graded VF Coin Roman
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