Antique Open Wire Fan Cover Farm Silo Implement Galvanized Metal Large 18" Rim by 9.5" height. Photos show use as a dome to show off a collectible. So many uses; great for a farm house, fixer upper style front porch etc. Reminds me of an old fan cover or vent cover from a farm barn or silo.  No markings. great architectural element to be repurposed!