File talk:785px Arty Call for Fire 1.jpg

I, SimonATL was the creator of this graphic by which I tried to explain the concept of indirect artillery fire. I released it to the general public and borrowed some elements from the US Army Publication on the use of American artillery, the Field Manual FM 40-10, as I recall. This work is a document in the public domain as it was an official US Army Field Manual. SimonATL 05:55, 16 November 2015 (UTC)