Backplate from a Brigandine

The object is a shield-like shape with curved sides and an irregular top edge. A horizontal line across the top appears to indicate a fold. The object has a dark brown color with visible rust spots and patches of discoloration. There are remnants of a light-colored fabric or material with visible stitching and red and orange tones on the left side. The fabric or material appears to be partially torn away, revealing the dark brown surface underneath. The background of the image is a plain light gray color. The title of the object is "Backplate from a Brigandine".