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Frank Povolny/Twentieth Century Fox/Sunset Boulevard/Corbis via Getty Images
Although Marilyn slipped into this gold lamé stunner quite a few times throughout her career, she most famously wore it for a series of portraits. The pleated design by William Travilla featured a plunging halter neckline that glistened with each movement.
The blonde beauty had to be sewn into this garment, which was made from "one complete circle of fabric," authors Christopher Nickens and George Zeno reported.