Road number 18 314 (starting July 1, 1970: 02 0314) forms a unique one-of-a-kind on the German State Railroad (DR) of East Germany in the series of Baden Pacific express locomotives, class "IV h", which were delivered by Maffei from 1918 to 1920 in three production runs totaling 20 units. The DRG took over all 20 locomotives as road numbers 18 301-303, 18 311-319, and 18 321-328. They were predestined for heavy express train service, primarily on the Rhine Valley Line Basle – Mannheim. Starting in 1933, these locomotives slowly wandered north, and they were based for a short time in Darmstadt, Koblenz, and Hamburg-Altona. They finally all found a new home in Bremen. Except for road number 18 326, all of the locomotives survived World War II. However, they were retired as early as 1948 as a splinter class. Only road numbers 18 316, 319, and 323 remained on the roster for experimental purposes for the German Federal Railroad's central office at Minden. By contrast, road number 18 314 went in April of 1948 to the subsequent German State Railroad (DR) in the Soviet Zone (from 1949 on the GDR) in an exchange for road number 18 434 (former Bavarian class S 3/6). This was done at the instigation of Max Baumberg – the subsequent manager of VES-M Halle (Railroad Research and Development Locomotive Management Department).
After a major overhaul completed at the beginning of August 1948 at the maintenance facility in Stendal, it was initially used from Stendal and then starting in April 1950 from Dresden-Altstadt in special train service. Starting in August 1950, came a longer stay in Meiningen to serve as an experimental locomotive as planned for the Railroad Research and Development Locomotive Management Department in Halle (VES-M Halle). For its experimental work, it was equipped with Riggenbach counter-pressure brakes, and its tender was replaced by one from a French North Railroad steam locomotive. Chiefly in the service of the VES-M, road number 18 314, soon nicknamed "Schorsch", achieved annual running distances by 1959 of 18,000 to 57,000 kilometers / 11,250 to 35,625 miles. At the end of the Fifties, the VES-M needed faster locomotives to test among other things passenger cars for 160 km/h / 100 mph. Yet, such fast running locomotives were not available. For that reason, road number 18 314 was now to be modified accordingly to reach higher speeds. Its conversion at the maintenance facility in Zwickau thus began in April of 1960 as part of a major overhaul. It was equipped with a new, modified combustion chamber boiler, the type 39E, a new cab, and a type 2‘2‘T34 standard design tender. The cylinders and boiler appliances were provided with partial streamlining and small, specially designed smoke deflectors were also installed. Last but not least, it now also gleamed in a green paint scheme with white striping. A fully newly designed road number 18 314 thus left the maintenance facility in December of 1960 and it could now reach a maximum speed of 150 km/h / 94 mph. By 1967, it achieved an annual running distance of up to 76,000 kilometers / 47,500 miles, amazing for a locomotive in experimental work, not so surprising since it was now being used in scheduled express train service. A last major overhaul starting in September of 1967 gave this locomotive oil firing, which made it somewhat more powerful. For two years, it was regularly under steam and then its use was reduced considerably. Even though it did several runs under the computer road number 02 0314 starting July 1, 1970, cylinder damage forced it into storage at the end of 1971 and it was thus retired on August 1, 1972. Initially, it went under the care of the Transportation Museum in Dresden and from there it was transferred on May 25, 1984 to the association "Frankfurt Historic Railroad" (HEF). Since 1986, it has formed one of the showpieces in the Automotive and Technology Museum in Sinsheim. It is on permanent loan from the HEF.