Two Loops for a Rein

The image shows a circular metal object with a central hole. The object is made of a dark-colored metal, likely copper or bronze, and has a rough, weathered appearance. It is circular in shape, with a large hole in the center. The metal is heavily corroded and has a greenish-blue patina. A small crack is visible on the left side. The object appears to be an old, worn-out washer or seal. The artist and title of the piece are "Two Loops for a Rein".