<P><b><center><font color=chocolate><font size=5>DOWNLOAD / PDF USER INSTRUCTION</center></font></font><P>Authorized reproduction of the users / instruction manual for a Singer Special Zig Zag, model 648, a round bobbin, automatic zig zag sewing machine with many of its basic attachments. It has basic information and stitch diagrams for its built in zig zag stitches and cam based stitches. It also has details for the chain stitching feature. It also has cleaning and oiling information and some troubleshooting information.