LSE4330000 The ascent of the peaks of the Andes by the Marcoy expedition requires the most acrobatic means: here, to climb a rocky piton, the Indians climb on each other\'s shoulders to reach the summit, engraving by E.Riou illustrating the journey between the sierra, the valley of Huarancalqui and the regions of Pajonal, from 1862 to 1863 , by Paul Marcoy, published in ??????Le tour du monde??????1875, edited by Edouard Charton, edition Hachette, Paris. Selva Collection. by Riou, Edouard (1833-1900); Private Collection; (add.info.: The ascent of the peaks of the Andes by the Marcoy expedition requires the most acrobatic means: here, to climb a rocky piton, the Indians climb on each other\'s shoulders to reach the summit, engraving by E.Riou illustrating the journey between the sierra, the valley of Huarancalqui and the regions of Pajonal, from 1862 to 1863 , by Paul Marcoy, published in ??????Le tour du monde??????1875, edited by Edouard Charton, edition Hachette, Paris. Selva Collection.); Photo by Leonard de Selva.