Having no expertise in this type of frame identification, some things did come to mind, though. The fork looks like it is of later manufacture than the frame. The head tube cable stops also look to have been added later. One didn’t usually see such cable stops in the same era as cable tunnels that were on the top of the Bottom bracket. The Milremo drop outs also seem to be from an even older period. I am awaiting, however, the judgement of the exceptionally knowledgeable “frame ID gurus” to weigh in……