16th Century Locksmith Tool “Danner’s Breaking Screw” | Vancouver Locksmith Blog

16th Century Locksmith Tool “Danner’s Breaking Screw” | Vancouver Locksmith Blog For further information go to www.mrlocksmith.com Medieval Locksmith Tools.     Leonhard Danner of Nuremberg was a Sixteenth-Century Nuremberger engineer/inventor. Nuremberger (Nürnberg) was the leading metalworking centre of Europe. Danner was renowned for inventing and manufacturing instruments which could demolish strong Medieval Moorish castle walls, gadgets for […]