Froissy Dompierre Light Railway
Chemin de fer Froissy-Dompierre, CFCD) is a 600 mm (1 ft 11+5⁄8 in) narrow gauge light railway running from Froissy (a hamlet of La Neuville-lès-Bray) to Dompierre-Becquincourt, through Cappy, in the Somme department, France.
It is run as a heritage railway by APPEVA (Association Picarde pour la Préservation et l’Entretien des Véhicules Anciens) and is also known as P’tit Train de la Haute Somme. It is the last survivor of the 600 mm (1 ft 11+5⁄8 in) narrow gauge trench railways of the WW1 battlefields.
The then, Locomotive No. 9 of the Mecklenburg-Pomeranian Narrow Gauge Railway (MPSB) was a four-axle superheated steam locomotive manufactured by Vulcan in 1925. The Deutsche Reichsbahn designated the locomotive as 99 3461 from April 1, 1949
https://de.m.wikipedia.org/wiki/MPSB_Nr._9_(3._Besetzung)