Issued by the Deutsche Bundespost in 1973, this German postage stamp celebrates the Harz narrow-gauge railway network in central Germany. The design shows a stylized map connecting stations such as Gerrode (Harz), Alexisbad, Straßberg, and Harzgerode, overlaid on a green-toned illustration of the Harz landscape and the Alexisbad station building. The map highlights the scenic route famous among tourists for its steam locomotives. A fine thematic piece for collectors interested in transport, tourism, and regional German railways.