This is a Vintage Ship Navigation Light with Clear Glass. The light has a clear lens with minor wear that spans 360 degrees, allowing the light to go in all directions. This is a very versatile light. It can be ceiling mounted, hung with the chain, or even post mounted. To access the bulb holder you loosen the three wing nuts on top. This is an estate item, comes from a pet and smoke free home. Will ship extra careful for a safe mail ride to you. If you have any questions or would like additional pictures, please message us. We are listing period items frequently so please follow and share. If you are looking for a certain item, message us - we get a lot of period items daily so we may be able to help. Thanks for coming in!