The BB I was a

steam locomotive A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomot ...

with the

Royal Bavarian State Railways The Royal Bavarian State Railways (''Königliche Bayerische Staats-Eisenbahnen'' or ''K.Bay.Sts.B.'') was the state railway company for the Kingdom of Bavaria. It was founded in 1844. The organisation grew into the second largest of the German ...

(''Königlich Bayerische Staatsbahn''). This one-off loco would have been given the operating number 55 7101 by the

Reichsbahn The ''Deutsche Reichsbahn'', also known as the German National Railway, the German State Railway, German Reich Railway, and the German Imperial Railway, was the German national railway system created after the end of World War I from the regiona ...

in their initial renumbering plan, but in the final one it did not appear as it had been retired in 1924. It can be seen in section today in the

Nuremberg Transport Museum The Nuremberg Transport Museum (') is based in Nuremberg, Germany, and consists of the Deutsche Bahn's own DB Museum and the Museum of Communications ('). It also has two satellite museums at Koblenz-Lützel (the '' DB Museum Koblenz'') and Hall ...

. The engine was initially equipped with a Bavarian 3 T 13,8 tender, later replaced by a Class 2'2' T 18.

See also