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Index Of All Titles


Alexander Tetradrachms
Ancient Coin Collecting 101
Ancient Coins & Modern Fakes
Ancient Counterfeits
Ancient Glass
Ancient Weapons
Ancient Wages and Prices
Ancient Weights and Scales
Anonymous Folles
Anonymous Follis
Anonymous Class A Folles
Armenian Numismatics Page
Byzantine Denominations
A Cabinet of Greek Coins
A Case of Counterfeits
Clashed Dies
Coins of Pontius Pilate
Conditions of Manufacture
Countermarked in Late Antiquity
Dictionary of Roman Coins
Doug Smith's Ancient Coins
Edict on Prices
Facing Portrait of Augustus
Fel Temp Reparatio
Fertility Pregnancy and Childbirth
Friend or Foe
Greek Alphabet
Greek Dates
Greek Mythology Link
Hellenistic Names & their Meanings
Helvetica's ID Help Page
Historia Numorum
Illustrated Ancient Coin Glossary
Imperial Mints of Philip the Arab
Latin Plurals
Latin Pronunciation
Library of Ancient Coinage
Life in Ancient Rome
Maps of the Ancient World
Military Belts
Mint Marks
Nabataean Numerals
Not in RIC
Numismatic Bulgarian
Numismatic Excellence Award
Numismatic French
Numismatic German
Numismatic Italian
Numismatic Spanish
Parthian Coins
Paleo-Hebrew Alphabet
Phoenician Alphabet
Pi-Style Athens Tetradrachms
Pricing and Grading Roman Coins
Roman Coin Attribution 101
Roman Mints
Roman Names
Serdi Celts
Silver Content of Parthian Drachms
Sylloge Nummorum Graecorum
Syracusian Folles
The Evolving Ancient Coin Market
The Sign that Changed the World
The Temple Tax Hoard
Travels of Paul
Tribute Penny
Tribute Penny Debate Continued (2015)
Tribute Penny Debate Revisited (2006)
Tyrian Shekels
What Did The Julio Claudians Really Look Like?
What I Like About Ancient Coins
Widow's Mite

Antoninianus (Double Denarius)

The antoninianus is a Roman double denarius coin denomination (pl. antoniniani) struck from 215 to 293 A.D. (or 274 if you consider the later issues, sometimes called aurelianiani, a new denomination). On the obverse of the antoninianus the emperor is depicted wearing a radiate crown, caesars are bare-headed, and empresses are shown with a lunar crescent behind their shoulders. On some later antoniniani the emperor wears a helmet. The ancient name for the type is unknown. Our modern name for it, antoninianus, names it after Marcus Aurelius Antoninus (nicknamed Caracalla) who introduced it in A.D. 215. Although the antoninianus was valued at two denarii, the weight was considerably less than that of two denarii. During the reign of Gordian III the antoninianus replaced the denarius as the primary Roman denomination. The first antoniniani were first struck with an alloy containing about 49.5% silver, but the denomination was continually debased until by 274 the alloy contained only 2.5% silver. In 274, Aurelian reformed the radiate denomination, striking on a copper core with a 5% silver coating, and valuing the new coin at 5 denarii commune. Older antoniniani no longer circulated after this reform and the radiate coins struck after the reform of 274 until 293 are also called aurelianianus. The antoninianus (or aurelianianus) was used until reform of Diocletian in 293.