7/25/18 - This is an original copy of THE MACHINE GUN: History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons by George M. Chinn: Lieutenant Colonel, USMC. This is volume I only. Prepared for the Bureau of Ordnance Department of the Navy. Published in 1951 and covers Forerunners of the Machine Gun, Manually operated machine guns, Full automatic machine gun development, aircraft and airborne weapons, and automatic aircraft cannons. Extensive research and coverage on the subject. The pages are excellent (688 total). Hardcover is also in excellent condition.