GREAT BRITAIN. William IV & Adelaide Coronation Bronze Medal, 1831. London Mint. PCGS SPECIMEN-63 Gold Shield.BHM-1475; Eimer-1251. By W. Wyon. Obverse: Bare head of William right; Reverse: Diademed head of Adelaide right. A choice and glistening example, this specimen presents a glossy brown allure with some colorful iridescence shimmering from beneath.