After the Stuttgart Tram Company (Stuttgarter Straßenbahnen or SSB) had shown no interest in building up a museum collection and the Filderbahn railcar 126 could only be preserved by keeping it at Ludwigsburg, the GES turned at the end of the 1960s to the more promising theme of opening a railway.
The engagement of the GES for the preservation and subsequent restoration of the Filderbahn wagon laid the foundation stone for the present-day collection of the Stuttgarter Historische Straßenbahnen.
Due to the ban on steam locomotives issued by the Deutsche Bundesbahn between 1977 and 1985 the operations were restricted to private railway lines on the Strohgäubahn from Korntal-Münchingen to Weissach or the Tälesbahn between Nürtingen and Neuffen.
To begin with, special trips were also run on the WEG routes from Enz Nord to Enzweihingen and, up to 1982, on the Filderbahn between Stuttgart-Möhringen, Stuttgart-Vaihingen, Leinfelden and Neuhausen auf den Fildern.
It comprises vehicles that were operated by the Hohenzollern Branch Line Company (Hohenzollerischen Kleinbahn Gesellschaft, from 1907 the Hohenzollerische Landesbahn).