Archaeologists have discovered a trove of ancient silver coins "hidden in a hole in the wall" on a Mediterranean island near Sicily, possibly during a pirate attack more than 2,000 years ago.

The mask mold, found in a building believed to have been used as a mask workshop, depicts Medusa with a stern face surrounded by wild, thick strands of hair.

The artifact emerged from the ruins of an ancient Roman building-turned-workshop in Sicily from the second or first century ...