Swing Needle Machines 

306 Swing Needle

Heavy-duty household semi-automatic.  "Swing-Needle" refers to the unique zig-zag motion of the needle bar.  Front-mounted verticle Fashion Discs are required for zig-zag and decorative stitches.  Timing-belt drive. Requires class 306 bobbin and size 206x13 needle.  It is possible to re-time for size 15x1 needles, but stitch-quality may suffer.  306W was manufactured at the old Wheeler & Wilson factory in Bridgeport, Connecticut and is the only domestic model Singer produced there.