Nostalgic Warehouse Classic Rosette with White Porcelain Door Knob, Single Dummy, Oil Rubbed Bronze Traditional mounting for vintage or new doors. Single Dummy Knob. Coordinates with Nostalgic Warehouse's Premium Grandeur line For use on interior doors that require only a push/pull function. Mounts directly to door. Mortise lock versions available for vintage doors 3-Year mechanical and finish Warranty