Now that is interesting. I've never seen a grain service boxcar with grain loading hatches added to the roof. All the photos I've ever seen of the early grain loading and unloading of grain service boxcars, show the grain being blown into the car through the side door, at the top gap of of the heavy cardboard side holders. When the car was emptied, the cardboard holders were simply knocked/cut out, and the grain spilled into the below track receiving area.
Could you provide any photos of the prototype Santa Fe grain service boxcar with the hatches on the roof?
