A gorgeous pair of cut steel shoe buckles from the late Victorian or Edwardian era. Attached to the back of the buckle, a flap of white kid leather, which fit over the shoe. By all appearance, they look to be French.
As there are needle holes at the edge of the leather, I assume this is how the buckles were attached to the shoes. Without removing the leather flap, which is attached to the metal buckle, the country of origin is unknown.