Update your HO operations with the Modern Yard Office kit from Cornerstone. This easy-to-build structure is typical of container conversions used by many railroads to update or replace older offices and features: Compact facility perfect for today′s freight, passenger or intermodal yards Separate doors and windows, air conditioner, electrical box, smokejack, decorative panels and more Printed interior Detailed plastic parts, molded in 3 colors Complete your installation with Trackside Signal Ducts (933-4091 sold separately)