This was the flag of Company B, 16th Alabama Infantry -- "Our readers will remember the confederate flag captured on the battle field where Zollicoffer fell, which was inscribed: ‘Presented to the Mountain Rangers, Captain F. A. Ashton, by Mrs. Chardavoyne.’ This trophy was secured by Captain Marsh B. Taylor, of Co. A [H], 10th Indiana regiment, in the very wildest fight, and the brave captain deserves every honor for the brave deed. … the Gen. commanding has sent it on with other articles to the city of Washington."
(from the Louisville Journal, quoted in the Lafayette, IN, Daily Journal, 10 February 1862)

This flag, along with others displayed at the War Department, was shown in a sketch that appeared in the New York Illustrated News, 15 March 1862, p. 300. See http://www.oocities.org/pentagon/quarters/1864/flags2.htm (under 16th Alabama Infantry).