Round Backplates, 1 inch - Paxton Hardware

Brass Sheraton backplates are a small 1" diameter, used to accent Sheraton knobs on period furniture.

Round Backplates, 2 inch - Paxton Hardware

Pewter Cabinet Hardware, Pewter Kitchen Cabinet Handles, Pewter Cabinet Handles

GlideRite Hardware 2.5-inch Round Cabinet Back Plate 10 Pack 5060-AB-10, Antique Brass Finish : Tools & Home Improvement

Pub House Knob Backplate Signature Satin Brass - 1 in - Handles & More

Circular Backplate for Antique Knobs, 1 inch - Paxton Hardware

Modern Cabinet Backplate For Knob Flat Black - 4 in - Handles & More

Round Cabinet Knob Backplate

Round Backplates, 1-1/2 inch - Paxton Hardware

Satin Brass Cabinet Hardware, Distressed Brass Cabinet Hardware, Unlacquered Brass Cabinet Hardware