The pictures in this gallery cover the following categories
The first section covers the national carrier Nationale Maatschappij der Belgische Spoorwegen (NMBS) or Société Nationale des Chemins de fer Belges (SNCB) that was formed in 1926 completing a process of nationalisation that had been developing for many years. In addition at the end there are a few pictures covering the enthusiast run tourist lines of more recent years.
The coverage of the industrial railways dates back to the 1960s & 1970s and is largely a collection of locomotive portraits like the other sections here.
As regards tramway systems, up until the late 1980s the larger cities had their own systems and there were the remnants of the once large network of lines owned by the Nationale Maatschappij van Buurtspoorwegen/Société Nationale des Chemins de Fer Vicinaux. There are more details of history of the tram systems on the Tramways page.