We collect old Singers and just wanted to tell you that you did a great job of cleaning the machine up. We have found that a lot of the old staining (brown "crud") on the metal parts of these machines is the oil that they used. This one looks so good, my DH gave me permission to offer to buy it from you. He said I could even go as high as $20 for it (LOL) Just kidding. This one could easily sell for $100's of dollars. I just love it and so does my DH. You have a real treasure there.