A set of Three 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.
The pieces measure each 9 cm by 2.5 cm approximately
or in inches 3 1/2 inches by 1 inch approximately.
Two tiny holes to secure to surface.