Ammo Box Military Vintage Item

We have an Ammo Box Military Vintage Item. It measures about 12 in w x about 7 5/8 in h x about 6 1/8 in d. One side is marked in yellow paint the other side in depressed letters on the bottom (pls see photo’s). It does close, it was closed with a nail through the small hole in the center of the box securing it when I attained it. There is a fair amount of rust & overall wear showing on this item. Ammo Box Military Vintage Item