There are some recently scanned, and very interesting, photos that have been added to the fantastic John W. Barriger III collection at Flickr.
The A. C. F. album alone is a gold mine of period rolling stock photographs worth hours of exploration!
https://www.flickr.com/photos/barrigerlibrary/albums/72157649155982802
For example, here's a neat flat car load:
Here is a link to the home page:
https://www.flickr.com/photos/barrigerlibrary/
I thought I'd pass on the link for those who have not had the pleasure...
Ed
Very cool, thanks!