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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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VERY RARE ANTONINUS PIUS ROMAN COIN - VERY FINE CONDITION - SEMIS 2GRAMS 16MM
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RARE AUGUSTUS OXENS ROMAN PROVINCIAL SEMIS COIN - 16MM 3GRAMS
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RARE Christian Cross Theodosius II Æ Minimu De Minimus TINY Coin Roman Coin wCOA
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SPLENDID CONSTANTINE I THE GREAT Arles in France Sol PARL R S Roman Coin wCOA
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JUDAEA, Antipatras. Elagabalus. AD 218-222. Æ Semis SCARCE Roman Coin COA
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RARE with Countermark Petraea, Petra. Caracalla. Æ Roman Coin Large AUTHENTIC
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Nice Olive Patina Decapolis. Petra. Hadrian. A.D. 117-138. Roman Coin Judaea
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💵OTHO-ANTIOCH-SC-WREATH-SEMIS-21mm-8.23g-69 AD-RPC 4319-VG-T_G_COINS!
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Trajan Decius, AE semis, Rome c. 249-251 AD, Mars standing left
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Nero Æ Semis. Rome, AD 64. NERO CAESAR AVG RIC 234 B49 #1352
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