This is a “Noble Eagle Sept 11 2001 Challenge Coin Enduring Defenders Of Freedom” Military coin. It is embossed bronze with wavy edges. It depicts the American Eagle, The New York Skyline with twin towers, the Pentagon, and symbols of the military branches on the back. It measures approximately 1 3/4″ x 1 3/4″. The coin and case is in Very Good pre-owned condition.