This is a carefully scaled and highly detailed 1/160 scale model of an ISO tanktainer that is used to carry bromine. Tanktainers like these were used throughout Europe and the United States to transport bromine by rail and even road.
It'll catch the eye loaded on a European container car, single-stacked in the well of a US stack-car/flat car or perhaps just in the yard or on the back of a truck somewhere on the layout.
You can see pictures of the prototype here: http://www.matts-place.com/intermodal/part2/images/tanks/glbu0002368.jpg
Although smoothest high-detail plastic coupled with careful finishing and painting creates an almost layerless finish I also decided to create a kit version of this model so you can use a length of brass tube and 3D printed end-caps to create the tank. You can see the kit version of this product here: https://www.shapeways.com/product/RQHF8VPEB/?key=f17f85debe5ae83b8aafb5ba0c034692
The choice is yours :)