This small and beautiful model railroad layout was built by the German model railroader Heinz-Ulrich Grumpe. It is a narrow gauge H0 layout; also known as HOn3 scale. The diorama has a size of 80 cm x 40 cm. The terrain was formed from Styrodur plates. Code-55 rail profiles (1.3 mm) were used for the tracks. The steam locomotive and diesel locomotive are operated in the same way with a speed controller in analogue mode. The switch frogs are polarized so that a continuous voltage supply is always guaranteed.