Nostalgic Warehouse Prairie Plate with Keyhole Crystal Glass 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 Traditional mounting for vintage or new doors. Two Dummy Knobs 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