From NYTimes.com:
When the three weathered cardboard boxes — known collectively, and cinematically, as the Mexican suitcase — arrived at the International Center of Photography more than a year ago, one of the first things a conservator did was bend down and sniff the film coiled inside, fearful of a telltale acrid odor, a sign of nitrate decay.
But the rolls turned out to be in remarkably good shape despite being almost untouched for 70 years. And so began a painstaking process of unfurling, scanning and trying to make sense of some 4,300 negatives taken by Robert Capa, Gerda Taro and David Seymour during the Spanish Civil War, groundbreaking work that was long thought to be lost but resurfaced several years ago in Mexico City.