You are looking at a 1886 street lamp from a small town named Clinton, Michigan near the Irish Hills area. The lights were installed in 1886 and changed from gas to electric in 1921. The body of the lamp is cast iron. The lid is cast aluminum with the original porcelain reflector. The first commercial land casting of aluminum in the US was in 1885 which was the Washington Monument caps on the lights. This was made one year later. Of course the gas fixtures are long gone and the original glass has since been replaced but, picture this piece of history in your yard. It is 34" tall and 17" in diameter. This discription was on a hand written card from the last owner.( This is info from another ebayer, I can't verify either way so I'm just showing you another opinion of when it was made and by who) These fixtures are circa 1920s so if they converted from gas to electric in 1921, they were new replacement electric fixtures. They were made by Westinghouse and never availabled in gas. The free listing tool. List your items fast and easy and manage your active items.