consolidated their production into 2-10-0 1'E DRB Class 52 Kriegslok designs, the DRB Class 41 „Ochsenlok“ (Oxen Loco) was a successful 1'D1 2-8-2 freight locomotive also used for commuter trains. They were operated by the Deutsche Reichsbahn (DRB) and were built from 1937 to 1941, gaining notoriety as the German steam locomotive with the highest efficiency η of 10%. Both standard gauge and narrow gauge 1D1 2-8-2 tank locomotive classes were used in Germany. The DRG Class 93.0-4 was a German 2-8-2T goods train tank locomotive that was used by the Prussian state railways as well as the French Chemins de fer d'Alsace et de Lorraine, designated as Class T14 by both railways. The Prussian locomotives were later incorporated by the Deutsche Reichsbahn and designated Class 93.0-4 under the DRG renumbering plan. Altogether 457 locomotives of this class were built for the Prussian state railways between 1914 and 1918. (Also see France - Tank locomotives) The DRG Class 86 was a standard goods train tank locomotive of the DRG. It was intended for duties on branch lines and was manufactured by almost all the locomotive building firms producing for the DRG. From 1942, a simplified wartime version was built, on which the most obvious changes were the omission of the second side windows in the cab and the solid disc carrying wheels. The Molli railway (Mollibahn), a narrow-gauge steam-powered railway in Mecklenburg running on gauge track, operates three 2-8-2T locomotives built by Orenstein & Koppel in 1932. India Broad gauge On the gauge, the Class XD was the first 2-8-2 in India to be built in quantity. Introduced in 1927, 78 were built before the Second World War by Vulcan Foundry, North British Locomotive Company (NBL), Armstrong Whitworth and Škoda Works. Production resumed after the war, and 110 were built by NBL in 1945 and 1946, while Vulcan Foundry built the last six in 1948. There was also a Class XE that was built by William Beardmore & Company and Vulcan Foundry. Wartime designs included the Class AWD and Class AWE, built by American company Baldwin Locomotive Works, and the Class X-Dominion (later Class CWD) built as part of Canada's Mutual Aid program by two Canadian companies, the Canadian Locomotive Company and Montreal Locomotive Works. After the war, a new design was produced and placed in production in 1950. The Class WG was the main post-war broad gauge freight locomotive