Swiss Locomotive and Machine Works (SLM) in Switzerland built a class of ten 2-8-0 locomotives for the Hejaz railway in 1912, numbered 87–96. They were later renumbered 150–159. Several were captured in 1918 by British and Empire forces or transferred in 1927 to Palestine Railways, which had taken over the Hejaz railway's Jezreel Valley branch in 1920. 153 (formerly 90) was transferred in 1927 and is pictured on the Jezreel Valley railway in 1946.The boiler for an SLM locomotive being unloaded at the port of Haifa, c. 1913
It was a part of the Ottoman railway network and the original goal was to extend the line from the Haydarpaşa Terminal in Kadıköy, Istanbul beyond Damascus to the Islamic holy city of Mecca. However, construction was interrupted due to the outbreak of World War I, and it reached only to Medina, 400 kilometres (250 mi) short of Mecca. The completed Damascus to Medina section was 1,300 kilometres (810 mi). It was the only railway completely built and operated by the Ottoman Empire.
The main purpose of the railway was to establish a connection between Istanbul, the capital of the Ottoman Empire and the seat of the Islamic Caliphate, and Hejaz in Arabia, the site of the holiest shrines of Islam and Mecca, the destination of the Hajj annual pilgrimage. Other objectives were to improve the economic and political integration of the distant Arabian provinces into the Ottoman state, and to facilitate the transportation of military forces.
