Black Silk and Gold Cord: Staff and Headquarters Operations in the Army of the Potomac, 1861-1865EbookBlack Silk and Gold Cord: Staff and Headquarters Operations in the Army of the Potomac, 1861-1865byJ. Boone BartholomeesRating: 0 out of 5 stars0 ratingsSave Black Silk and Gold Cord: Staff and Headquarters Operations in the Army of the Potomac, 1861-1865 for later