The nearly 200-year-old 30-by-34-foot Star-Spangled Banner is displayed in a low-oxygen, environmentally controlled chamber in the National Museum of American History. (Smithsonian Institution via Associated Press)
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The nearly 200-year-old 30-by-34-foot Star-Spangled Banner is displayed in a low-oxygen, environmentally controlled chamber in the National Museum of American History. (Smithsonian Institution via Associated Press)
