An early 20th century diamond-set ring

An early 20th century diamond-set ring
Modelled as the figure of justice holding her scales extending from the hoop into the central oval hinged panel chased with the profiles of the German Emperor Wilhelm II and the Austrian Emperor Francis Joseph I, the whole accented with an old-cut diamond, opening to reveal a similar plaque chased with the profiles of George V of England, Tsar Nicholas II of Russia and Raymond Poincaré, President of France, framed by a snake extending from the other half of the hoop, the base of the hoop marked 1914, finger size O, Austro-Hungarian gold marks