MARYPORT, ENGLAND—Archaeologists digging at a Roman settlement in northwestern England have found a rare piece of rock crystal that might have been the centerpiece of a ring, reports BBC Cumbria. Dating to the second or third century A.D., the back of the crystal appears to have been carved with a depiction of a bearded man. It is just one of several important artifacts to have emerged from the site, a civilian settlement that was associated with a fort that was one of the outposts guarding Hadrian’s Wall, which long marked the frontier of Roman Britain. To read about another remarkable artifact unearthed on the Romano-British frontier, go to “Artifact: Roman Birthday Party Invite.”