王立ヴュルテンベルク邦有鉄道
The Württemberg Class B and Class B2 engines were steam locomotives with the Royal Württemberg State Railways ("Königlich Württembergische Staats-Eisenbahnen") first built in 1868 by the Maschinenfabrik Esslingen ('Esslingen engineering works') in Esslingen in the former Kingdom of Württemberg in southern Germany.