Prototype: Bavarian GtL 4/4 Locomotives were supplied by Krauss to the state railway. In 1911, two were delivered and, in 1914, they were followed by a further eleven engines.

As a result of their positive experience with the GtL 4/4 the Bavarian Group Administration (Gruppenverwaltung Bayern) of the Deutsche Reichsbahn decided to procure more examples of this Locomotive. From 1921 to 1927 Krauss supplied another 108 engines that were somewhat heavier and differed from the original versions in the design of the driver's cab. The last 17 Locomotives from 1927 were even heavier than the previous engines, which was due to the increased size of water and coal tanks. Boiler, drive and power remained unchanged over the entire procurement period. The Locomotives were designated as DRG Class 98.8-9 by the Reichsbahn, and were given the numbers 98 801 to 98 917.

Model: Super-detailling, -livery and -lettering. Inset windows. Prototypical "daylight" between boiler and chassis. Fully operational, finely detailed Heusinger valve gear. Brake blocks between the wheels. Cast metal chassis. Motor with flywheel. Drive onto 8 driving wheels. Triple headlights (triple co-ordinated tail lights by fitting the light-change unit 6542). Slot-guide mechanism at each end with automatic PROFI-couplings for true close-coupling and pre-uncoupling. Standard NEM 362 coupling socket. Era III.