In this Thursday, Dec. 7, 2017 photo, Charles Swift, managing director and curator of the U.S. Naval Academy Museum, stands in front of a case in Annapolis, Md., where the flags shown behind him had been tucked away from view behind another flag on display for nearly 100 years. The flags were recently moved out of the cases for preservation. (Brian Witte/AP)
In this Thursday, Dec. 7, 2017, photo, Charles Swift, managing director and curator of the U.S. Naval Academy Museum in Annapolis, Md., looks up from a British flag of the HMS Landrail, which was captured in 1814 by American privateers sailing in the English Channel. It is one of 61 flags recently removed from glass cases at the U.S. Naval Academy for preservation. (Brian Witte/AP)
This undated photo provided by the U.S. Naval Academy Museum shows some of the flags found behind War of 1812 flags in Mahan Hall at the U.S. Naval Academy Museum in Annapolis, Md. (U.S. Naval Academy Museum via AP)
This undated photo provided by the U.S. Naval Academy Museum shows a detail of a flag, showing Amelia Fowler's stamp at the U.S. Naval Academy Museum in Annapolis, Md. Fowler, a well-known flag preserver who restored the original Star-Spangled Banner in 1914, was contracted in 1912 to conserve the academy’s collection of trophy flags. She worked with dozens of other women in the museum’s Mahan Hall, using a patented stitching pattern to help preserve fabric. (United States Naval Academy Museum via AP)
This Dec. 7, 2017, photo shows a Chinese pirate flag captured from a fort not far from Macau in 1854, at the U.S. Naval Academy Museum in Annapolis, Md. (U.S. Naval Academy Museum via AP)
This 1913 photo made available by the United States Naval Academy Museum shows the auditorium of Mahan Hall at the U.S. Naval Academy in Annapolis, Md. Dozens of women in the museum's Mahan Hall, used a patented stitching pattern to help preserve fabric. (U.S. Naval Academy Museum via AP)