I have a Kenmore model #158.19141. I bought it new in 1976. (Even then it cost over $600!) Did you get any accessories with it, like the decorative cams? They had cams for all sorts of designs and 2 sizes of lettering. I sewed many an item on it and even taught my kids to sew on it. I hope you have success with the manual. I still refer to mine after all these years, although now I do ost of my sewing on my Babylock Esante BLS. My Babylock dealer said that my Kenmore was made by Singer, and yes, it does weigh a ton!