Last car is an all door boxcar, designed for lumber and other building products transport. In essence the car had an open box (floor, roof, ends), with each side made up of four large doors designed to slide over each other. This arrangement gave the car users access to the entire length of the car, and they were marketed as having the loading and unloading ease of a flatcar combined with the load protection of a boxcar. They were very common in the northwest timber and related products industries especially in the late 1960s through the later 1980s. Not many left today.
I have some more information on the cars, focused mostly on U.S. Plywood's fleet, at this page:
[
www.mccloudriverrailroad.com]
Finally, to Lucky Strike, have you tried reporting any of your lifted videos as of yet? I don't know how much of a difference it might make, but it can't hurt...
Jeff Moore
Elko, NV