I don't know the production year of this furnace, and I haven't found the information yet. If anyone finds it, please let me know.
I have not seen that brand but similar boiling stoves that I have seen were those made by Falk from the mid-1930s and those from Valor up to the mid-1950s. Perhaps someone else with a knowledge of Swedish stoves can help. Your stove looks nice and the upper section(s) looks to be possibly cast.
