A geological map of the Duchy of Tyrol

A vast map of the Duchy of Tyrol on a scale of 1:112,500, coloured to differentiate between 32 geological types. In 1836 the 'Geognostisch-Montanistischen Verein von Tirol und Vorarlberg' was founded in Innsbruck, the third geological society to be founded, with the purpose of creating a geological map of the duchy. Their surveys started in 1837, under the supervision of Dr. Michael Stotter of the Landesmuseum Ferdinandeum, and continued until 1846, when the surveys were compiled into a single map. The map was then sent to Munich to be lithographed. Although the map is dated 1849, the date on the box title is 1851. Such was its impact that a geological map of the entire Habsburg Empire was soon commissioned.