NSB Class IV

8 Cudrun at Melhus station (cropped image).

The NSB (Norwegian State Railways) Class IV (as in the number four, or "fire" in Norwegian) or Tryggve Class was a class of 1067 mm narrow gauge 2-4-0 steam locomotives built by Beyer-Peacock and in Manchester and typical of that company's designs, strongly resembling the Manx Peacock locomotives for the Isle of Man. Built 1866–1883.

Further reading

Bjerke, Thor; Hansen, Trond B.; Johansson, Erik W.; Sando, Svein E. (1987). Damplokomotiver i Norge. Norsk Jernbaneklubb. s. 222–224, 232–233. ISBN 82-90286-09-0.