I have a few coil steel cars that appear every now and again on the layout. The JSSX does serve a small fabricating shop that receives this type of car occasionally. I added to the collection a couple of years ago when I picked up this covered coil steel gondola on a trip to Florida. At that time, this model (Atlas) kind of stood out to me because it was the first one I'd seen one painted in this light grey scheme.
This freight car took quite a while to make it's way into the weathering lineup, but it's done now, my weathering inspired by this Erik Edmonds photo that I ran across online.
I lightly weathered the cradle inside the car and set some coils inside just for the picture.
The weight for the Atlas coil car is located inside the cover, glued in. The cover won't be able to go back on unless these coils are removed.