CHECK THE THICKNESS AND HIGHT OF THE SHEILD AGAINST A 55 GALLON STEEL DRUM AND YOU MAY FIND THE SOURCE OF THE METAL. IT IS LIKELY THEY GOT THE MATERIAL FROM SOMETHING IN THE AREA THAT WAS READILY AVAILABLE. THIS EXAMPLE IS NOT MADE OF ROOFING METAL , WITH A LOT OF CUTTING AND POUNDING SEVERAL SUCH SHIELDS COULD BE MADE FROM A STEEL BARREL. A NICE EXAMPLE REGARDLESS OF WHAT IT WAS MADE OF.
