Once the trains have been manufactured, it is time to sell them. This was especially important for Rokal, both because it was a new line of products and because Rokalís train making career came after a major war that had left Germany in ruins. In this 1957 picture, Minister of Economics Ludwig Erhard takes a close look at Rokal; he would later become Chancellor.
Erhardís interest was genuine. Every item that was manufactured in Germany and then sold overseas meant hard currency coming into Germany for reconstruction. Exports were important.
So, here are a few pages on Rokalís promotion and distribution.