Keywords: CH-NB-Souvenir des cantons de Grisons et Tessin-19000-page016.tif fr Livre Souvenir des cantons de Grisons et Tessin Cn de Grisons Le pont inferieur de la via mala 1838 Institution Swiss National Library nbdig-19000 Wagner Johann Friedrich Public domain PD-old-100 Swiss National Library CH-NB-Souvenir des cantons de Grisons et Tessin User Swiss National Library/Attribution-Recommendation nbdig-19000 Media contributed by the Swiss National Library Historical images of the canton of Graubünden Via Mala Stone arch bridges in Switzerland Bridges in the canton of Graubünden |