Vintage Copper Square Brooch

I love how this vintage copper brooch was designed. The brooch is solid copper in a square shape with some ridges and a domed center. It's covered in a brown paint or enamel and as you wear it and the paint scratches you reveal the copper underneath. This beauty just gets better with age and wear as more and more of the copper shines through. Very awesome piece that would look killer on a hat, scarf or jacket. Measures 2"x2"