text: During the reign of Augustus and Tiberius, many of these objects were produced at Lugdunum.
full_question: During the reign of Augustus and Tiberius, many of these objects were produced at Lugdunum.Participants in the Bar Kokhba revolt used a file to remove the original designs of these objects. Caracalla commissioned the antonianus type of these objects. Under Constantine, the solidus type of these objects was often replaced with the pecunia type. Standardization and reform of these objects was carried out by (*) Diocletian, who issued an edict that was heavily based on one of these objects called the denarius. The term for the study of these objects is derived from the Latin word numismatis. These objects, whose aureus type was made of gold, often contained a profile portrait of the emperor on the obverse. For 10 points, name these units of Roman currency.
first_sentence: During the reign of Augustus and Tiberius, many of these objects were produced at Lugdunum.
raw_answer: Roman coins [or Roman coinage; accept antonianus before mentioned; accept solidus before mentioned; accept pecunia before mentioned; accept denarius before mentioned; accept aureus before mentioned] 