A vintage collegiate souvenir megaphone representing the United States Naval Academy (Navy Midshipmen). The object consists of a conical yellow plastic body featuring navy blue printed graphics. The exterior is decorated with the text GO! NAVY Beat ARMY in a combination of block and script lettering. Centered on the body is a stylized caricature of the Navy mascot, Bill the Goat, depicted wearing a jersey with a large N and holding a naval anchor. The megaphone is topped with a silver-tone metal mouthpiece rim that includes an attached ball-chain carrying handle. Based on historical examples of similar stadium souvenirs, this item is characteristic of collegiate merchandise from the mid-20th century, specifically produced for the Army-Navy football rivalry. No manufacturer marks are visible on the exterior.