Cobalt Blue Convex Glass Railroad Signal Switch Traffic Lantern Lamp Lens 5 5/8" Kopp. Marked Century Lighting Company. No major chips, cracks or fractures but there is expected wear and tear for its age. I have other listings of different colors as well as some marked Century Lighting Co and some just marked Kopp. All listings are 5 5/8" in diameter. I will gladly combine shipping. NOTE: THIS LISTING IS FOR ONE ONLY. Please refer to pictures for condition, message with any questions