Walthers Cornerstone 933-2945 HO Elevated Crossing Tower Pkg of 2 NIB KITWalthers Cornerstone 933 2945 HO Elevated Crossing Tower Pkg of 2 NIB KIT Protect HO highways in busy cities with this detailed Cornerstone kit! Ideal for steam or diesel era grade crossings, the model is based on the Milwaukee Road's distinctive two story octagonal towers that protected each end of the Everett Street station complex, as well as other locations, and similar structures could be found on other railroads. Parts for two towers are