Before 1942 VR Class Tr1s originally had the class name was R1. They were nicknamed “Risto”, after the Finnish President Risto Ryti. They were a heavy freight locomotive. They were numbered 1030–1096.
67 locomotives were built between 1940–57 by Tampella, Lokomo and Arnold Jung Lokomotivfabrik GmbH, Jungenthal of Germany. The "Risto" is a product of the same era as the express train locomotive Ukko-Pekka, and they share a similar appearance. Tr1 1096 was the last steam locomotive manufactured for VR in 1957. TR1 locomotives were withdrawn during the 1970s, with the last being withdrawn in 1975.