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.
US . inch field gun barrel diagrams. Diagrams showing barrel construction and fittings of US inch field gun Model of Plate in Handbook of the inch Gun Matriel Model Ordnance Dept Revised September Downloaded from org Ordnance Dept PDUSGov inch Gun Model Gun barrels
Page 2023 Free-images.com. All images are Public Domain