My husband, who is quickly turning into a sewing machine mechanic, got the cases open. They both have the spindle bobbins. The two machines in the cabinets are a Nechii Supernova, which is a bit stiff yet, and a Singer 404. It is in almost perfect condition and has a beautiful, straight stitch, even though it is still loosenly up. She'll be a beautiful addition to our sewing ministry. Thanks so much for all your help!