2024-09-262024-09-26"Alan Turing in Chair with Book." Elaine Negroponte collection on John von Neumann and Alan Turing. Shelby White and Leon Levy Archives Center, Institute for Advanced Study (Princeton, N.J.).https://hdl.handle.net/20.500.12111/8234Image of Alan Turing seated on a chair reading a book.B&WPhotographer unknown.Image