English: Tk3-1105 Finnish locomotive. Russian Railway Museum, adjacent Baltiysky Railway station, Saint Petersburg

These locomotive were used by the Soviet Union until 1950’s. They came to the Soviet Union as reparations. This one was built in Tampere in 1943 and like many Finnish locomotives it is a wood burner.

The Class Tk3 was the most numerous steam locomotive class in Finland with 161 built. 100 locomotives were constructed between 1927 and 1930, with a further 61 ordered and constructed 1943–53.

They were designed for a low axle load of just 10.7 tonnes (10.5 long tons; 11.8 short tons). This allowed them to operate on lightly laid secondary lines.