from Sofia to Varna depot. They remained on these local passenger train duties well into the 1970s, when they were ousted by diesel locomotives and diesel trainsets. Some were preserved. Canada The Toronto, Hamilton and Buffalo Railway (TH&B) was the only Canadian Railway to operate 2-8-4 Berkshires. Only two locomotives were ordered from the Montreal Locomotive Works (MLW) in 1927, works numbers 67573 and 67574. They were the last new steam locomotives to be ordered by the TH&B and were allocated road numbers 201 and 202. They were fitted with Coffin feedwater heaters and duplex stokers, and had a working order weight of 128 tons. After being equipped with Automatic Train Control (ATC) in 1929, they were the only TH&B freight locomotives which were allowed to run on New York Central’s tracks, on the Welland-Buffalo line. Due to dieselisation, both were withdrawn from service in June 1953. Both locomotives 201 and 202 were scrapped in late 1953 . Czechoslovakia Tank locomotives The Czechoslovak State Railways (CSD) was one of the largest tank locomotive users in Europe. The dense railway network in Bohemia and Moravia provided the ideal environment for local short distance passenger train workings powered by numerous classes of tank locomotives. On 31 December 1937, the CSD had no less than 1,250 tank locomotives on its roster, of which 385 were eight-coupled tank locomotives. The first Czechoslovakian 1’D2’t-h2 (2-8-4) tank locomotive was derived from the CSD Class 455.1 1’D-h2 (2-8-0) tender locomotive, with water tanks, a coal bunker and a trailing bogie added. Apart from changing the drive from the second to the third coupled axle and increasing the superheating surface of the boiler, these handsome tank locomotives were mechanically identical to the tender locomotives. They were originally intended to be used on the Prague to České Budějovice (Böhmisch Budweis) line and on branch lines diverting from the mainline for local train service. At the time, however, the 16 ton axle load proved to be too high for most of the lines where they were intended to run and for this reason only 27 locomotives were built between 1928 and 1932. The first thirteen were initially designated Class 446.0, but an increase in their permitted maximum speed to led to the locomotive's reclassification to Class 456.0, numbered 456.001 to 027. These were powerful tank locomotives, nicknamed Krasin after the explorer General Nobile who reached the North Pole in 1928.