Workers in the city of Tomares, in Andalusia, were working on installing a water line to a park in the city of 24,000, according to the Spanish newspaper El País, when they noticed irregular terrain inside a ditch about a meter below ground level.
Some of the containers were broken, with the coins spilling out of them, while others were intact. They show an emperor, Maximian or Constantine on one side and Roman allegories on the other, researchers told reporters. Experts are speculating that the coins were meant to pay taxes or support legions of the Roman armies in Spain at the time.
“We have a team looking into the discovery right now. We believe it is hugely important and will have more information very soon,” a spokesman at Andalusia’s Ministry of Culture in Seville told The Local on Thursday.
Ana Navarro, head of Seville’s Archeology Museum, offered no precise estimate for the value of the haul, saying only that the coins were worth “certainly several million euros.”
“The majority were newly minted and some of them probably were bathed in silver, not just bronze,” Navarro told reporters.
“I could not give you an economic value, because the value they really have is historical and you can’t calculate that.”
The Romans invaded the Iberian Peninsula in 206 B.C. and stayed for about 700 years, turning Andalusia into one of the empire’s richest colonies.