Vintage Electric Wall Brass Sconce to be Rewired buy

This is a beautiful very old brass wall sconce that possibly needs rewiring. It has a glass shade and a button to turn on and off. The screws that hold the glass shade are the original rose shaped screws. It was resourced from a 1917 craftsman style home. It measures about 6 1/4 inches long and about 3 1/2 buy inches wide.