1) Coin of ancient Rome
Found on
https://www.crosswordclues.com/clue/antoninianus
The Antoninianus was a coin used during the Roman Empire thought to have been valued at 2 denarii. It was initially silver, but was slowly debased to bronze. The coin was introduced by Caracalla in early 215 and was a silver coin similar to the denarius except that it was slightly larger and featured the emperor wearing a radiate crown, indicating...
Found on
http://en.wikipedia.org/wiki/Antoninianus
The name given in modern times to a Roman coin thought to be twice the value of a denarius. Originally a silver coin. The amount of silver in the mix dropped drastically over the years, and later antoniniani were hard to tell from copper or bronze.
Found on
https://www.encyclo.co.uk/local/20503
a Roman coin of the 3rd century a.d., originally of silver but later debased.
Found on
https://www.infoplease.com/dictionary/antoninianus
No exact match found.
