Gressoney : Ivrea, Pont St-Martin, Issime, Gressoney St-Jean, La Trinité, Monte Rosa.

"Estratto dalla Guida illustrata della valle d'Aosta."

Atti dei Laboratorii scientifici "A. Mosso" sul Monte Rosa

Mode of access: Internet.

Illustrations of the passes of the Alps, by which Italy communicates with France, Switzerland, and Germany.

Each section preceded by engr. title, with vignette.