Prima Mushroom Concealed Fix Un-Sprung Mortice Door Knob (60mm Diameter), Satin Brass - SB2029 (sold in pairs) from Door Handle Company
10 Pack Satin Brass Finish Flat Lever(Keyed Alike) Keyed Entry Door Lock/Door Knob Hardware Lever and Front Door Lever Door Knob, Left or Right Handing, Door Levers - Canada
Diamond Backplate Door Handle Lever Set with Rectangular 5 inch Backplate Satin Brass / Black - GTA Door Hardware
coolnews Passage Gold Door Knobs Interior, Heavy Duty Square Door Knobs Modern Door Handle for Hall Closet, Satin Brass - Yahoo Shopping