Johan Peter Lamy (1790-1840) - Monsieur de Saussure's ascent to the summit of Mont Blanc in August 1785 Aquatint. Rare proof in contemporary colours H. 11.4 cm - W. 15 cm and H. 19.5 cm - W. 25.5 cm (with margins) The margins of the print are uniformly yellowed - First escape of view of the convent of the great Saint Bernard with the representation of the avalanche rushing down from0 Mont Marengo on 20 January 1825 Aquatint. Rare proof in contemporary colours H. 11.5 cm - W. 15.2 cm and H. 19.5 cm - W. 26 cm (with margins) The margins of the print are uniformly yellowed A small coloured lithograph of Geneva and Mont Blanc by another artist is included. H. 12 cm - L. 18 cm (with margins)