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.
Keywords from Image Description:
.inchHowitzerMkILongitudinalSection. Longitudinal section of inch Howitzer Mk US model of Based on Diagram in Handbook of artillery including mobile antiaircraft and trench matriel page archive org United States Army Ordnance Dept US Government no copyright PDUSGov BL inch Howitzer technical drawings