Make your HO operations safer with this authentic SceneMaster Telltale kit that features: Newly tooled layout accessory kit! Used throughout the steam- and early diesel-eras Installed at both ends of tunnels, bridges and structures with limited overhead clearance Provided advance warning to brakeman on tops of cars of approaching danger Parts to build two single track Telltales Designed for easy construction and installation Great detail alongside Chooch Tunnel Portals, Cornerstone Bridges and other structure kits, each sold separately