Eighth grader Kinley Harrison carefully works with a needle to pull up some dirt on her coin. She quickly learned too much pressure would scratch it, so alternated between the needle and toothpick on ...

Cleaning ancient coins is about preservation, not shine. This video shows how Graeme from Unearthed carefully cleans bronze ...

From dull relics to gleaming treasures, these Roman silver coins undergo a meticulous revival. The process shows the delicate art of balancing preservation with restoration, leaving behind coins that ...