Lionel 3535 Licensed Reproduction Window AEC Security Car Box. This Box is exactly like the 6414 Auto Loader Box, and holds the car in place with the trucks turned out. The inserts and the lenghth of the box fit all Lionel Flatcars. Due to the height of the box, it accommodates all of the Lionel Flatcars with high loads. Although this box did not come as a window box, it is a perfect fit for this car. It fits with  the security guns and searchlight  mounted on the car.