Signal Office, War Department. Signal Service Notes No. XIII. Prepared under the Direction of Brig. & Bvt. Maj. Gen'l W. B. Hazen, Chief Signal Officer of the Army. By Authority of the Secretary of War. 16 pp. Brown paper wraps. Light chipping to corners, edges and spine edge, browning along cover edges. Ink numbers written at top of front cover. Interior clean. Document in VG condition. View More...