Regrettably, I didn't take as many pictures of this building as I did of others, so Google Street View is filling in for me on some of the ground-level shots here. It appears that most of the former dock area has been (attempted to be) filled in to expand the driveway for Carthage Marble (visible in the background).
The rail served side of the building consists of a concrete dock and a single door. I'd presume whatevr they ordered came in boxcars.
There's also some interesting brick detail on the street facade of the building as well.
I've not been able to locate a solid history of when this building changed hands.