Vietnam Solder's Drawing & War Map

I came across this set about 2-3 years ago,this came from the estate of a Vietnam vet who had passed,there were lots of magazines,Jagged Sword,Nco club,inside of one of the books with more maps were inside the books,two are hand drawn pictures I don't know the city or town on paper,the map look like the top is gone,has hand drawn lines "ammo disposal,name of a unit and points,it's dirty on back as if it was carried in the war I would love to have any kind of information,town or city on the drawing or what road the truck is on,what kind of map.