The number on the small marking tag says 29 K 3
My grandfather was born in 1898 and bought the sewing machine used somewhere in the 1920's or 30's. He had a small farm and was quite handy, so he made a some extra money by fixing shoes, sharpening knifes and axes and stuff for people in the area in addition to being a farmer.
Times were tuff in the inlands of Norway in the 20's and 30's. My father tells that they were often freezing during the winters, especially one their feets, but at least they weren't starving.
My grandfathers brother had a similar, small farm close by and for 10 years the two of them were switching: Working 1 year at the railway and after that working 1 year on both farms. I guess they didn't become fat and bad shaped wery easy those days...
Using the sewing machine is a little tribute to my grandfather. He was certainly one of guys that made things to last.