Here Army Surplus World we carry a variety of challenge coins. The U.S Army Military Intelligence challenge coin is made of Minted in a brass alloy and finished in bronze, this coin is imbued with enamel on both sides. It measures 1 3/4 inch (44mm) Round. Each coin comes packaged with a detailed header card that describes the mission and history of the U.S. Army. Order the U.S Army Military Intelligence challenge coin from Army Surplus World Today.