In photos: Remembering Gustave Le Gray, one of the most important French photographer of the 19th century

The Beech Tree, by Gustave Le Gray (circa 1856). In October 1999, Sotheby's sold a Le Gray albumen print "Beech Tree, Fontainebleau" for £419,500, which -at that time- was a world record for the most expensive single photograph ever sold at auction to an anonymous buyer. Later that day -at the same auction- an albumen print of "Grande Vague, Sète" ("The Big Wave at Sète," "The Great Wave, Sète") also by Le Gray was sold for a new world record price of £507,500 or $840,370 to the same anonym...