Roman Soldier Head in Pewter mix with primitive pin backs

1-5/8" around. Roman warrior head with helmet. Seems hand made, Got it in Dads garage. (Dad kept all his Dad's stuff and also collected misc. things) May be from another country wartime. I assume lapel pin. Primitively made. No clue how old, but I feel like its very old. It just feels like it is a symbol of a warrior, thus an old war type decorative pin. No markings. I assume military to be it's category, even if hand made, I assume it was done during a war, perhaps not U.S. Not sure.