This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
inchUSMAAGunAutoTrailerTravelingPosition. Photograph of US inch Antiaircraft gun on AutoTrailer in travelling position Page in Handbook of artillery including mobile antiaircraft and trench matriel archive org United States Army Ordnance Dept US Government no copyright PDUSGov inch AA gun
Page 2023 Free-images.com. All images are Public Domain