Пулемет Левис

Жизнь кадетов на авиабазе Келли-Фильд,Класс воздушной стрельбы.Кадет стреляет из пулемёта Льюиса, май (28-го)1918 года...

111-SC-10768 - Life of a cadet at Kelly Field, San Antonio, Texas. Aerial gunnery class. Cadet firing Lewis machine gun.
https://en.wikipedia.org/wiki/Kelly_Field

https://catalog.archives.gov/id/55181861

111-SC-10772 - Life of a cadet at Kelly Field, San Antonio, Texas. Cadets at gunnery class, aerial firing - targets on painted aeroplanes.
https://catalog.archives.gov/id/55181869

111-SC-10771 - Life of a cadet at Kelly Field, San Antonio, Texas. Cadets at gunnery class, aerial firing - targets on painted aeroplanes.
https://catalog.archives.gov/id/55181867