LSE4329244 An alluvion gold mine, open air in Colombia, by means of pumps, a stream of water brings the auriferous sludge back to the work site, the tools of the miners are of the utmost simplicity, iron bars and a pool of rocks in which heavy particles and golden pepites accumulate, then are carried away in stretchers. Engraving to illustrate the voyage to New Granada, by Dr. Saffray, in 1869, published in ??????Le tour du monde??????????1872, edited by Edouard Charton, edition Hachette, Paris. Selva Collection. by Unknown Artist, (19th century); Private Collection; (add.info.: An alluvion gold mine, open air in Colombia, by means of pumps, a stream of water brings the auriferous sludge back to the work site, the tools of the miners are of the utmost simplicity, iron bars and a pool of rocks in which heavy particles and golden pepites accumulate, then are carried away in stretchers. Engraving to illustrate the voyage to New Granada, by Dr. Saffray, in 1869, published in ??????Le tour du monde??????????1872, edited by Edouard Charton, edition Hachette, Paris. Selva Collection.); Photo by Leonard de Selva.