Board Thread:Suggestions forum/@comment-67.142.172.20-20150827020649/@comment-178.128.82.138-20150828194045

Indeed, bur the Numenoreans loyal to the Valar might have known the sword-making art from the Eldar of Valinor, or just keep the swords made by the Numenoreans who knew it, al long time ago. They had never been loyal to Pharazon, so the  knowledge of the Elves could have passed from generation to generation.