This is part an ongoing series that answers your questions about our collections. If there’s something you would like to know about, please use the ‘Contact’ form or email us directly here.
Poppy S. from San Francisco asks:
“What was the largest mint in the Roman empire?”
Although Roman authorities operated important provincial mints like Alexandria and allowed many individual cities to retain the production of local coinages, the mint of Rome itself dwarfed any other production center during the classical period of the Later Republic and the High Empire. The only brief exception to that rule was the mint at Lugdunum in central Gaul, which was hugely productive at the beginning of the 1st century. Below is an aureus bearing the bust of Emperor Tiberius struck there in 15-16 AD.
In terms of raw numbers, the American Numismatic Society has around 70,000 coins in its Roman collection. For those coins for which a mint has been attributed, 25,000 were struck in Rome. Coinage from Roman Alexandria accounts for the next largest mintage, with some 15,000 pieces, but these coins are also significantly over-represented in the collection, which skews the numbers a bit. Antioch (4,000), Lugdunum (2,000), and then sundry smaller collections from other Roman and provincial mints make up the remainder.
A useful tool for understanding Roman coinage is OCRE (Online Coins of the Roman Empire), an ongoing project to catalogue the holdings of the American Numismatic Society and other major coin cabinets. The database has a cool mapping option that allows you to visualize the mint and findspot data for the coins in the ever-expading database.