The 7th U.S. Cavalry flag — known as a “guidon” for its swallow-tailed shape — was sold by Sotheby’s of New York on behalf of the Detroit Institute of Arts, which bought the flag for ...

11 December 2010 • 12:22am Frayed, torn, and with possible bloodstains, the flag had been valued before its sale at up to $5 million Credit: Photo: AFP/GETTY The 7th U.S. Cavalry flag – known ...