Finnish Steam Locomotive Class C1
class of 10 Finnish 0-6-0 locomotives

The Class C1 Steam Locomotives were introduced in 1868 for use in the Grand Duchy of Finland, then an autonomous region of the Russian Empire. Built by Neilson & Company in Glasgow, Scotland, these locomotives reflected the design principles of Victorian-era British 0-6-0 freight engines. They featured inside cylinders and Stephenson link motion. Modifications such as wood-burning smokestacks and wooden cab sides were made to suit Finnish conditions.
The Class C1 locomotives share similarities with several British locomotive classes, including the NER Class C1, Caledonian Railway 294 and 711 Classes, Caledonian Railway 812 and 652 Classes, LB&SCR C class, and SER O class. Neilson & Company also supplied similar 5-foot-gauge 0-6-0 locomotives to other railways across the Russian Empire. However, limited photographic and technical documentation of these models remains.
Only one locomotive of this class, No. 1427, is preserved today and is housed at the Finnish Railway Museum. It is the only known surviving example of the many 0-6-0 locomotives once used throughout the Russian Empire during the 19th century.
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