Mint: Rome (Italy)
Abbreviation: R, RM, ROM
Almost all coinage supplied to Britain until the mid 3rd century AD was produced at Rome. Most Roman Republican and Early Imperial coinage, whether struck in gold, silver or copper alloy, was struck there. At this time there were no mintmarks, although the copper alloy issues always carry the mark S C (Senatus Consulto; By decree of the Senate). From the time of the reforms of Diocletian most of the coins supplied to Britain came from the closer mints at Trier, Lyons and Arles, but coins from the mint at Rome still appear. 4th century coins from the mint of Rome carry the mint marks R, RM or ROM.