On the link below I came across an image of PFE’s Roseville Ice Manufacturing Plant and tracks. As one would expect, there are plenty of refrigerator cars on the tracks.
One item that caught my eye was the flat car next to the icing platform. The car appears to have blocks of ice on it. It’s hard to tell with certainty and the “ice blocks” may be something else entirely.
Can anyone make an educated guess as to what the load on the flat car actually is?