One member of the class, no. 53.320, has been preserved by the NMBS/SNCB, and will be part of the collection of Train World, the Belgian national railway museum. It is now painted in a chocolate livery, and bears its earlier NMBS/SNCB number, 5620.
The Type 23 was derived from this Grand Central Belge [fr; nl] design.
Dambly, Phil (1989). Vapeur en Belgique [Steam in Belgium]. Vol. Tome 1: Des origines à 1914 [Volume 1: Origins to 1914]. Brussels: G. Blanchart & Cie. ISBN2872020055. (in French)
Dambly, Phil (1994). Vapeur en Belgique [Steam in Belgium]. Vol. Tome 2: De 1914 aux dernières fumées [Volume 2: From 1914 to last smoke]. Brussels: G. Blanchart & Cie. ISBN2872020136. (in French)