C1780. Copper-line engraving. C1780. 245mm by 365mm (platemark). French copper-line engraving, from 'The Scenery and Science of Switzerland illustrated', by Antoine Baron de Zurlauben (1720-1795) & Jean Benjamin Laborde (1734-1794). Published in Paris, 1780-1788. Claude-Louis Chatelet was a distinguished French painter, draftsman and engraver."