JUTOROSY 3 Way Lamp Socket Replacement, UL Listed Lamp Switch Replacement E26/E27 Light Socket Medium Base Interior Only with Turn Switch Knob, Lamp Repair Kit for Table Lamps, Floor Lamp, 2-Pack -
2 pack) 3 way socket replacement for lamp, Medium Base Interior Only, Incandescent Lamp holder, Removable Turn Knob, 2-Circuit. - Amazon.com
3-Way Rotary Switch- Brass – My Lamp Parts
Project Source 250-Watt Plastic Turn Knob Lamp Socket, Gold in the Light Sockets department at Lowes.com