For interested people, there are also old maps of Switzerland available as "Journey through time" on the government website [1] They are ranging from 1844 to 2013. It's based on Dufour and Siegfried maps, which are presented there: [2, 3]. Time can be changed by clicking on the year number in red.

[1] https://map.geo.admin.ch/?layers=ch.swisstopo.zeitreihen&lay...

[2] https://www.swisstopo.admin.ch/en/knowledge-facts/maps-and-m...

[3] https://www.swisstopo.admin.ch/en/knowledge-facts/maps-and-m...