One could say that everything begins and ends in Marcel Duchamp’s studio. His first New York studio is perhaps best known from a series of small and grainy photos, some of them out of focus. They were taken sometime between 1916 and 1918 by a certain Henri-Pierre Roché, a good friend of Duchamp. Roché was a writer, not a professional photographer, clearly. He was the same guy who would go on to write Jules et Jim , arguably a far better novel than these are photographs. But their aesthetic…