Signature Hardware 480923 Hubbard Solid Brass Passage Door Knob Set with Adjustable 2-3/8" or 2-3/4" Backset - Amazon.com
Nostalgic Warehouse Crystal Victorian Double Dummy Door Knob with Keyhole Meadows Long Plate | Wayfair
Steel Threaded Dummy Door Knob Spindle 1" Plate Diameter | Zinc Plated Doorknob Spindle, Doorknob Hardware, Modern or Vintage Door Knobs Replacement | LDS-8 (6) - Amazon.com
NU-SET Lock | Steel Plate Door Hole Cover | Door Lock Hole Cover with Brass Finish | Home Improvement & Door Hardware (Brass) - Door Lock Replacement Parts - Amazon.com
Prime-Line Door Hole Cover Plate, 2-5/8 in. Diameter, Satin Nickel U 10446 - The Home Depot
Hubbard Brass Interior Door Knob & Plate Set - Privacy | Signature Hardware
LOIYLLEN Door Reinforcement Plate, Door Lock Repair Plate, Stainless Steel Door Knobs Fixing Plate Bracket - Fix
Weslock Molten Bronze Wexford Doorknob with Square Backplate
Door Knob Trim Plate – Restoration Supplies
Prime-Line 1-3/4-in W x 10-7/8-in H Brushed Door Reinforcer Reinforcing Plate in the Door Reinforcers department at Lowes.com