I recently responded to a CL ad for an older machine in a cabinet. When I emailed to ask for more details was told it's just an old machine. Well, I went and looked at it. It was a Singer in a cabinet with accessories. It was made in 1948. I paid $30 for it and was happy to give her a new home. It has plant pee stains on the cabinet plus some scratches but it runs and runs well. It may be a 15-91. Can't wait til I can get it upstairs, set up, and sewing on it.