BNB VIb

The BNB VIb was a class of two branch line tank locomotives of the Bohemian Northern Railway Company for use on the Česká Lípa–Kamenický Šenov railway line. They later passed to the Imperial Austrian State Railways, who classified them as kkStB 265.
The two locomotives were built in Prague in 1907 by the Erste Böhmisch-Mährische Maschinenfabrik.
The locomotives spent their entire lives on their home line. In 1924 the Czechoslovak State Railways grouped the engines into their ČSD Class 312.7. After the Second World War the Deutsche Reichsbahn gave them the designation DR Class 90.3.
On the introduction into service of new ČSD Class M 131.1 railcars, these locomotives were retired in 1949.