The discovery was made by workers digging trenches for a water line

Construction workers in Tomares, Spain, uncovered 19 storage containers containing 1,300 pounds of bronze coins dating from the 3rd and 4th centuries.

The coins appear to never have been in circulation. They show an emperor, thought to be Maximian or Constantine, on one side, and depictions of Roman allegories on the other side.

In a statement to The Local, Ana Navarro, the head of Seville’s Archaeology Museum, estimated the coins to be worth “certainly several million euros,” and added, “I could not give you an economic value, because the value they really have is historical, and you can’t calculate that.”

JCK