My Kenmore is a 13571, not far from the one you are considering. I think that series was made by Jaguar, and it is a great machine. A regular workhorse that will sew just about anything you want to throw at it. Where have you seen this machine? Is it Craigslist? Garage Sale? Have you satisfied yourself that it actually works? I doubt I'd take $50 for mine, but perhaps the seller isn't as attached to it as I am to mine.