I enjoyed reading Keith Kohlmann's brief article on upgrading Atlas Trainman 40' double door boxcars in the latest NSR today. In particular, I enjoyed the hint on modeling the exterior detail of the Evans auto loader - the undercarriage chain tubes. That made me think of Mr. Kohlmann's past article on grain doors.
I've seen the occasional proto photo showing an interior load divider or what-not, but it would be nice to find a central source for such details. I'm wondering if anyone knows of such a central reference source on modeling interior details like that?