SEK before conversion to diesel traction. They were designed and built in Italy by Breda (10 units) and Ansaldo (10 units) in 1953–1954, while some parts (including whole tender underframes) were made by Nuove Reggiane. The length of the locomotive with the tender was 24.93 m, the maximum height 4.51 m and service weight 136 tn. The boiler operated at 18 bar and their rated power was 2950 hp. Maximum speed was 90 km/h. Due to various technical problems, only two years after introduction they were modified by Henschel (1957–1958). The boilers were converted to burn heavy fuel oil. These locomotives were based at Aghios Ioannis Rentis and Thessaloniki depots and were used mainly for freight trains and for some express passenger trains on Piraeus–Thessaloniki and Thessaloniki–Idomeni mainlines until the early 1970s, when they were withdrawn by the Hellenic Railways Organisation (successor of SEK) due to complete conversion to diesel traction. Only two examples survived the 1984-1985 steam locomotives scrappings. One of them, 1002 was set on display as part of the theatre "Το Τρένο στο Ρουφ" (="The Train at Rouf"), at Rouf station in Athens. The other one is located at Thessaloniki old railway station, not preserved. United States In the United States, the type was produced between 1903 and 1930. The first were the Atchison, Topeka and Santa Fe Railway (AT&SF) engines of the 900 and 1600 series, which were an early type with few advantages over the 2-10-0 Decapod, save their ability to operate in reverse without derailing. By 1919, the AT&SF was building the definitive type, with the trailing truck supporting a large firebox. These were of the AT&SF 3800 class. One of them, AT&SF engine no. 3829, was equipped with an experimental two-axle trailing truck to become the first 2-10-4 Texas type. About 2,200 Santa Fe types were built, including about 500 of the two United States Railroad Administration (USRA) First World War standard designs. There were two USRA standard , the heavy version with an engine weight of and the light version with an engine weight of . The Santa Fe had the most with 352 engines. Of the 2-10-2’s built for the Santa Fe, only one has been preserved. AT&SF No. 940 is on static display outside the Santa Fe depot, now a Visitor Center, in Bartlesville, Oklahoma. The heaviest s were ten locomotives built by Baldwin Locomotive Works for the Reading Railway