Antique French Brass Ormolu coloured Curtain Rings 1940s set of five (5) matching rings Made in France Do not open

A set of five (5) Antique Brass Curtain Rings with decorative feather or leave which were made in France in about 1920s.
I have not polished it but left it as I found it in the french market.
It will polish up to a gold colour.
The inside diameter is 5.4 cm or 2 1/8 inches approximately.
Outside diameter is 7 cm or 2 3/4 inches Approximately.
Very pretty set.
Heavy rings.
Does not open.