TSP/PTF is a Belgian railway museum society with houses most of their collection in Saint-Ghislain (on Mons-Tournai) at a disused NMBS/SNCB shed. Each European heritage weekend (2nd full weekend in September) TSP open their doors at Saint-Ghislain. One of their locos is 5941 and remarkable of this engine is, that on one cab, it wears single headlights, on the other double headlights. 
Scanned photo by Leon Schrijvers  Leon2711schrijvers@yahoo.co.uk