Map of the lake of Neuchatel by  Covens & Mortier. After the death of the widow of Pieter Mortier in 1719, the firm continued till 1778 as Covens & Mortier. They published numerous atlases and pocket atlases, using maps after de l' Isle and Map of the lake of Neuchatel.Plus Mercator's and Blaeu's maps of the Wiflispurgergou.   [Lot of 3 maps]- Carte de la Souveraineté de NEUCHATEL et VALLANGIN- das WIFLISPUR-Gergow-  Das WIFLISPUR-Gergow Blaeu 1610