The chrome on the sconces looks like it will clean up pretty good. Wire is original, untested and should be replaced. Please look over the pictures and ask questions when needed. Overall - 24"tall x 17 5/8" (20" with sconce) wide x 4 1/2" (7 3/4with sconce) depth. The interior - 20" tall x 15"wide x 4depth.
Back Recessed - 20" length x 15 1/4" wide x 3 depth.