VTG 6 Brass & Silver Plated Knife Fork Napkin Rings Handmade for Pier 1 Imports

This is a set of six. I believe these are brass and silver plated but can’t find any definitive information. The plating is in rough shape and there is a touch of corrosion where the ring is welded on that is coming away nicely with a toothbrush. Measure 2” x 2.25”. Please see all photos.