page_title: West Switzerland Company
section_title: Rolling stock
hierarchical_section_title: West Switzerland Company / Rolling stock
caption_attribution_description: Deutsch: Ouest-Suisse (OS): Güterzuglokomotive vom Typ „Bourbonnais“, Serie D 3/3 Nr. 2 „La Côte“ (spätere SBB-Nummer 3699), gebaut 1858 von der Maschinenfabrik Cail, Paris, umgebaut 1888 in der Hauptwerkstätte der Jura-Simplon-Bahn in Yverdon Die umgebaute D 3/3 Nr. 503 von 1888, spätere SBB D 3/3 3699 (Bild), war die erste Verbund-Maschine der Schweiz. In der ursprünglichen Form als OS-Nr. 2 hatte sie einen offenen, lediglich durch einen kleinen Schirm geschützten Führerstand. Beim Umbau 1888 erhielt sie zusätzlich zum neuen Kessel auch ein Führerhaus. Die Lokomotive wurde 1913 ausrangiert.
context_page_description: The West Switzerland Company was a railway company in Switzerland, formed 1854 and absorbed into the Western Swiss Railway in 1872. The OS built a railway network in western Switzerland and connected with France via Geneva in 1858, although Switzerland's first railway was the French Strasbourg–Basel Railway, which connected Basel with Strasbourg, France in 1844.
context_section_description: The following is a list of locomotives used on the OS:
   
  The D 3/3 Nr. 502 was completely rebuilt in 1888 by the SOS in the workshop Yverdon as the only machine in the series. It received a new boiler and was equipped as the first locomotive in Switzerland with compound drive. The open driving position, which was protected by a small screen only, was replaced by a cab.
caption: The D 3/3 No. 503 was the first compound steam locomotive in Switzerland.
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