The post-reform radiate (this is a later name given by numismatists; the contemporary Latin or Greek name, like many Roman coins of this time, is unknown), was a Roman coin first issued by Diocletian during his currency reforms of AD 293–310. The radiate looked very similar to the Antoninianus (pre-reform radiate), with a radiate crown, similar to the one worn by the Roman deity, Sol Invictus. It is different from the Antoninianus because of the absence of the "XXI" that existed on pre-reform radiates, a symbol believed to have indicated a consistence of 20 parts bronze to 1 part silver. The post-reform radiate had little or no silver content. The weight can vary between 2.23 and 3.44 grams.
- "Archived copy". Archived from the original on 2005-02-28. Retrieved 2006-09-13.CS1 maint: archived copy as title (link) retrieved 13 sept 2006
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