The Finnish Steam Locomotive Class C1s were typical of the Victorian principles of locomotive design and the British 0-6-0 of the period with inside cylinders and Stephenson link motion. There is a similarity with the NER Class C1, Caledonian Railway 294 and 711 Classes, Caledonian Railway 812 and 652 Classes, LB&SCR C class, and SER O class. The wood-burning smoke stacks and wooden cab sides were installed for Finnish conditions. It should be remembered that the Grand Duchy of Finland was an autonomous part of the Russian Empire until 1917. Neilson also supplied a number of similar 5 foot gauge 0-6-0s to other railways in the Russian Empire, but few photographs and drawings remain. No 1427 at the Finnish Railway Museum is the only preserved example, and is therefore the only surviving example of the varied 0-6-0 types that were once common across the Russian Empire in the 19th Century. It therefore is one of the few clues as to the design of these Russian 0-6-0 locomotives that we now have. In fact, No.30 ended up remaining in Finland Station, St. Petersburg, Russia in 1918 during the civil wars in Finland and Russia.
No 1427 is the second oldest locomotive in Finland after the 1868 Beyer Peacocks 0-4-2T. It is builder’s numbers 1427, a Finnish class C1 and carried running number 21. It was the first freight locomotive for Finnish Railways, then called SVR. In particular it was the first of a batch of 10 supplied (builder’s numbers 1427-1436 and running numbers 21-30) to the Riihimaki-St Petersburg Railway in 1869. They later also ran to Helsinki and Turku. The locomotive was withdrawn in 1926. The last of the class was withdrawn in 1929.