From the family-owned cellar forge to the globally successful company for safety. 1924, in the small village of Volmarstein in the weather on the Ruhr: this was a time when people still went to the light playhouse to watch silent films, where children played on barely passable roads and computers were still pure future music. But August Bremicker succeeded in 1924 with his sons the masterpiece of bringing a padlock to the market that was groundbreaking for his future and that of his family: the "Iron Rock".