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There might be a serial number under the base, along the edge some where. Some serial numbers were put on a plate or sticker with the Voltage/Ampere/Watt info under the hand wheel. It's not the worst of models, considering it takes double layer flexi cams. If you want stitch patterns with stretch or similar there are almost no all metal models at all. The Touch and Sew had some fancy bobbin functions, auto winding, and take these large transparent bobbins you can take appart.