The empty space within the body of Type 1 is known for the corrosion inside. Humidity and dust get through condensation or through cracks within the empty parts, where they can do their destructing work. The result doesn't look that nice. The welding seams get thicker by corrosion and the underside gets perforated. Now it's possible to repair the underside of the frame head of Type 1 -07/65 with this bottom plate. Available each from stock.