There is some debate amongst Seaboard Air Line modelers in regards to the Kadee Products offering of the Seaboard Air Line's "Green Hornet" boxcars. If you can find some additional evidence to suggest the roofs were fully painted, partially painted, or galvanized as seen in this example of SAL 15073 (Bob's Photo, author's collection), please let me know.
The newest issue of the Seaboard-Coast Line Modeler include a full feature article on these unique boxcars and their application throughout the Seaboard Air Line system. The Green Hornet logo is utilized in accordance with U.S. Copyright Fair Use Act (Title 17, U.S. Code) and was accessed from SeekPNG.