NSB Class 73
 NSB Class 73 (Norwegian: NSB-type 73) is a class of 22 electric multiple units built by Adtranz for the Norwegian State Railways. The four-car trains were modifications of Class 71 which was again based on the Swedish X2. The A-series consists of 16 intercity trains; they were delivered in 1999 and 2000 and are used on the Bergen Dovre and Sørland Lines. The intercity service was branded as Signatur until 2003.