Detailed regional map of Switzerland, extending from Bern in the south to Louffen in the North.
Our research suggests that the map may be quite rare. We found very little information on the map and only 2 or 3 references, two in 19th Century catalogues of maps in German Libraries and 1 on line illustration from a private collection.
While we cannot be certain, the map looks like it is either a proof state or was never finished, as the upper left corner of the map has no placenames and lots of blank space, and the lakes in the lower left are not named.
The son of famous French cartographer Nicolas Sanson, Guillaume (1633-1703) carried on his father's work. Like his sire, he was a court geographer to Louis XIV. He often worked in partnership with another prominent cartographer of the time, Hubert Jaillot.