ISBN 9781149647707 books & textbook
Instructions for Mounting, Using and Caring for 4.72-Inch Rapid-Fire Gun, Armstrong, 45 Caliber, Mounted on Barbette Carriage, Armstrong, October 28, 1904
Grunsky, Carl Ewald United States Army Ordnance Dept
Nabu Press /2010-05-25 Paperback / 46 Pages
isbn-10: 1149647701 / isbn-13: 9781149647707
