XEE4411734 Niepce reading to Louis Daguerre lthe description of Heliography, for the fixing of pictures from camera obscura - Nicephore Niepce (1765-1833), French inventor, pioneer of photography reading to Daguerre the description of his method for fixing the images of the dark chamber engraving 19th century, Bianchetti collection. by Unknown Artist, (19th century); Private Collection; (add.info.: Niepce reading to Louis Daguerre lthe description of Heliography, for the fixing of pictures from camera obscura - Nicephore Niepce (1765-1833), French inventor, pioneer of photography reading to Daguerre the description of his method for fixing the images of the dark chamber engraving 19th century, Bianchetti collection.); Stefano Bianchetti.