Here are two units that I would like to know more about. I have collected a few maps and I would like to know more about how the maps were printed and distributed to the field commanders.
Map Depot Detachment - Received, stored, and issued maps. This unit was adequate to provide map depot facilities for one base section.
Photomapping Team - This team was equipped to perform original topographic mapping from aerial photographs. It was normally attached to a topographic unit having planning, computing, and reproduction facilities; it was sometimes used to increase the capacity of a base topographic battalion.
The maps have a reference source and the name of the organization who drafted it. Then it might have an additional entry as to who published (or printed) it. Some examples of the marking are:
"Photolithographed by 66th Engr. Top Co., U.S. Army, September 1944"
and "Prepared by P.I. Sect. HQ II Corps" and signed by G-2
"Reproduced by 12 Polish Corps Fd. Svy. Coy. April 1944"
Any info will be helpful. One of these days, I will have a complete page about Field Maps and how to read them. Some day.
Steve