https://www.mccoys.com/shop/p/4976148-052303-28/hy-ko-kc200-key-ring-brass
Decorative keys used for opening older-style door locks in homes and restored furnishings.
Type
Decorative, Notched, Skeleton
Finish
Brass
Dimensions
0.23 in L x 2-3/4 in W x 5-1/2 in H
Ring Material
Zinc