Since I am trying to suggest an old Austria-Hungary spirit of Steam Route between Poland and Ukraine specifically Lviv Premzyl via Mostika. Does anyone who holds the license to the Galician Carl Ludwig Bahn (Galizien Carl Ludwig Bahn German Wikipedia link)? Which actually made the cross border Ukraine Poland route under Austria-Hungary rule. Track gauge there was 1.435m not the configuration we have now 1.520m Russian Gauge (in the United States this would have been Confederate Southern Gauge) & 1.435m around Premzyl Mostika border crossing. My Plan was to make an Era 1-2 route 1800s-1920s due to the game lacking them.
At a guess, I would say ÖBB does. In the 1890s Austria-Hungary nationalised all its railroads into the kkStB (kaiserliche und königliche Staatsbahn). After WW1 the portion of the kkStB lying in the new Austria became the ÖBB.