"The extraordinary importance which the Gruson-Schumann Shielded Mountings have obtained in military science during the last five years has naturally somewhat diverted the public interest from the armoured turrets and batteries of the Gruson...
The accompanying instructions for the care and cleaning of recoil cylinders of seacoast carriages, prepared in the Office of the Chief of Ordnance, are published for the use and information of the Coast Artillery.
1916 description, adjustment and operation in drill and target practice / prepared especially for officers and enlisted men of the National Guard, and recommended for their use by the Division of Militia Affairs of the War Department.