This lithograph was written by CPT Bill Smith (formerly the Headquarters Company Comannder of the 551st) when he was attending the Advanced Infantry Officer's Class #2 at Fort Benning in 1949-1950 https://www.infantry.army.mil/monographs/content/wwii/STUP2/SmithBillG.%20CPT.pdf The accompanying map overlays can be found here (I took digital pictures when I was at Fort Benning's NCO Academy in 2006) http://smg.photobucket.com/albums/v518/82ndLHD/551st%20PIB%20GOYAs/CPT%20Smith%20Overlays/