In the summer of 1949, when Kubrick was about 21 years old, Look magazine assigned him to do a photo-essay titled, "Chicago, City of Contrasts."

Part of the assignment took him to shoot the traders in The Pit at the Chicago Board of Trade, which later merged with the Chicago Mercantile Exchange.

He came back with some amazing images. After they were published, however, they were mislabeled by the Library of Congress, and most people don't know that Kubrick ever spent time at the exchange.

BI now presents them correctly labeled for the first time this century: This is what Kubrick saw, 63 years ago.