Radiate (coin)

The radiate or Post-reform radiate (the Latin name, like many Roman coins of this time, is unknown), was a Roman coin introduced by Diocletian during his reforms. The radiate looked very similar to the Antoninianus, with a radiate crown like Sol Invictus, apart from the absence of the "XXI" marking that numismatists believe indicated that the coin contained 20 parts bronze to 1 part silver. The radiate had little or no silver content. The weight varies between 2.23^[1] and 3.44 grams.^[2]

On known radiates there is only one image: Jupiter presents Victory on a globe to Diocletian (Wildwinds^[3]), with the mintmark between the human images^[4]

There are also known radiates of Maximian, Constantius I, and Galerius, Diocletian's co-rulers, in the same style.

References

Accessed on 13 September 2006

Currencies of Ancient Rome

Proto-currency	Bronze Aes rude Aes signatum

Republican era	Gold Aureus Silver Denarius Sestertius Victoriatus Quadrigatus Bronze and copper Dupondius (2 asses) As (1) Dodrans (3/4) Bes (2/3) Semis (1/2) Triens (1/3) Quadrans (1/4) Quincunx (5/12) Sextans (1/6) Uncia (1/12) Semuncia (1/24)

Early Empire	Gold Aureus Dacicus Silver Antoninianus (32 asses) Denarius (10; 16) Quinarius (5; 8) Copper Double sestertius (8) Sestertius (2½; 4) Dupondius (2) As (1) Semis (1/2) Quadrans (1/4)

Diocletian era	Gold Solidus Silver Argenteus Nummus Copper Radiate Laureate Denarius

Late Empire	Gold Solidus Tremissis Silver Miliarense Siliqua Copper and bronze Follis Nummus Constantinian bronzes Centenionalis

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