Hmm. Sounds interesting. That is one of those green book series of the US Army history?? Does it tell more about each unit that was responsible for making the maps?
I have picked up several Army Manuals that deal with artillery and map reading. They have helped me a lot. But I just don't know where the maps came from.
Another example; I have a small collection of air force "silk" maps or also called escape maps. Most veterans say that these were handed out to the flight crew just prior to a mission and supposedly returned after it. However, I'm sure many weren't and that is why most of them got into circulation. I know those were printed in the US because of the special equipment required to make the rayon cloth and print it properly.
I just don't know about the paper maps.
Steve