Vintage Eagle Top Exterior Electric Carriage House Lantern Type Light Fixture 
The lantern is approximately 14" high, each glass pane measures 4.5" X 5.25", and the bottom measures 5.25" in diameter.  
The eagle appears to be brass, the top middle portion is copper, the top and bottom of the glass are an unknown non-magnetic alloy, and the base is copper.
The lantern is in good used condition but needs to be cleaned and painted.