Whoever holds a Roman coin in their hand also holds a piece of ancient craftsmanship. This is because Roman coins were not produced by machine – each one was created through a precise, physically demanding process that changed little over centuries.
The Blank: Aes, Argentum, Aurum
Depending on the coin type, the correct metal was prepared first. The Romans primarily used:
- Bronze or copper for everyday coins (As, Sestertius)
- Silver for the Denarius – the most important circulating coin
- Gold for the Aureus – the coin of the upper class and the military
The metal was melted down and cast into round blanks (flans) – small discs of a defined weight, which served as the basis for minting.
The Dies: Engraved Masterpieces
The core of coin production was the minting dies (Latin: cunei). Experienced engravers cut the design in reverse into hardened steel – the reverse on the lower die (incus), the obverse with the emperor's portrait on the upper die (malleus).
These engravings required the highest precision and artistic skill. The quality of the dies varied greatly – depending on the mint and epoch. Well-preserved die cuts produce the impressively detailed portraits that make Roman coins so attractive even today.
The Minting Process: One Strike, One Coin
The heated or cold-pressed blank was placed between the lower and upper dies. A powerful hammer blow transferred the design to both sides of the blank. The result: a finished coin – in a fraction of a second.
Experienced minters could produce several hundred coins per hour this way. A single die often lasted only a few thousand strikes before it had to be replaced.
The Mints of the Empire
The Roman Empire operated numerous Monetae (mints) – from Rome to Lugdunum (Lyon) to Antioch. Each coin often bore a letter code identifying its place of origin. These so-called mint marks are valuable clues for numismatists today for dating and classifying a coin.
Why are irregularities a sign of authenticity?
Since each coin was struck by hand, slight shifts, uneven edges, or minimally different depths in the coin image are completely normal – and even a sign of authenticity. Modern forgeries often appear too uniform and can therefore be exposed.
You can find original Roman coins from our assortment here: Artifacts – Original Historical Objects | Nautilus Natural History
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