A vintage set of 24 gray plastic pattern/stitch cam discs for an automatic zig-zag sewing machine. The set comes housed in a hard amber/yellow transparent plastic storage box with a yellow plastic tray inside. Each cam features molded pattern contours and numbered markings to create various decorative zig-zag and embroidery stitches. This accessory set is in very good vintage condition with minor surface wear on the amber cover consistent with age. The cams appear clean and intact without chips or cracks.