A set of Two matching Antique Brass Keyhole Cover made in France in the 1900s

A set of Two matching Antique Brass Keyhole Cover made in France in the 1900s.
I have not polished them. One has a dark patina. And the keyhole itself is slightly larger.
The pieces measure each 4 cm by 4.7 cm approximately
or in inches 1 1/2 inches by 1 3/4 inches approximately.
Two tiny holes to secure to surface.