I brought home a Singer 503 - it is a Rocketeer that has to have cams/disks - in ways, I like them better - less to mess with. This one is missing all the accessories and has no disks. It does work. I cleaned the outside of it but it is too bloomin' hot out to mess with chemicals - someone used 3 in one oil on the insides. The zigzag fells pretty gummy. The stitch width and the left/center/right lever feel pretty gummy. Her motor purrs - her foot control was in the knee lever control holder - usually that means they have less wear. I'm thinking she wasn't used for much - looks like she was in storage for some time. She did polish up - someone was a smoker - why is it when people smoked they smoked a lot around sewing machines?