The Wabash Decatur shops are in the background. I toured them when I was in the Cub Scout in the 50's, great memory. Our Cub pack took a train from St. Louis and returned the same way in a coach provided to us by the railroad. The coach was dropped off in Decatur and picked up again when we left.
I was in Decatur for a Thanksgiving in the early 80's and went back to take a look. Although this F7 was in sad shape, it has been restored in Wabash colors and is at a museum in Illinois.
The picture reminds me of happy some days.