Wall Sconces

4 matching wall sconces, possibly brass with silver-plating, and each has a porcelain insert (similar to Wedgewood). The size is approx. 19” tall and, at the bottom, 11” wide x 7” deep. There is a signature on the back of each porcelain insert, but I cannot read it. Each is in excellent condition with original wiring intact, and no evidence of repairs. They were originally in a historic house in Los Angeles.