Charles Eugène PERRON (1837-1919) Relief plan of the Mont Blanc range in plaster at a scale of 1:100,000. With its map stuck in the lid of the box. Produced for the comptoir minéralogique et géologique suisse, Geneva. Grand Prix at the 1900 Universal Exhibition. H. 10 cm - W. 57 cm - D. 22 cm In its box Close model in the Chamonix Alpine Museum