Love the oddity of this unusual sconce with hammered texture overall. Notice the lanterns round openings and rivets. The hammered canopy is 3" square (so won't cover a modern junction box). This comes with a old style mounting option where the canopy simply screws to wall with provided bracket. Glass might not be original to piece. Can easily be replaced with mica.
10” deep, 4” wide, 11” high. Canopy is 3” square.