"He may have written the fourth to fulfill a contract or because he needed more money, " said Michael Schmidt, the executor of Ford's literary estate.

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The fully articulated gown based on the Fibonacci sequence was designed by Michael Schmidt and 3D modeled by architect Francis Bitonti to be 3D printed in Nylon by Shapeways.

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The emails obtained by CNN also illustrate how officials at NARA came to learn of the Clinton controversy after they were reached out to by staff on a congressional committee, then a few days later by New York Times reporter Michael Schmidt, who broke the story in March.

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