Austria Medal 1856 Wilhelm Ritter von Haidinger. Franz Joseph I (1848-1916). Bronze medal (K. Lange) from the Imperial and Royal Geological Institute in honor of its founder and long-time director; Wilhelm Ritter von Haidinger. Head to the right / globe surrounded by a ribbon with 12 signs of the zodiac. Bronze. Weight approx: 124.18g. Diameter: 64 mm