the world in colour

"In the early part of the 20th century French-Jewish capitalist Albert Kahn set about to collect a photographic record of the world, the images were held in an 'Archive of the Planet'. Before the 1929 stock market crash he was able to amass a collection of 180,000 metres of b/w film and more than 72,000 autochrome plates, the first industrial process for true colour photography."

found here.