(604) 200-8622

16th Century Locksmith Tool “Danner’s Breaking Screw” | Mr. 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 breaking […]