vintage photos of US military ordinance small arms ammunition ammo boxes

Lot of 4 12-3/4" x 11" black and white photos of military ammo boxes. These photos show small arms ammunition cases for .30 caliber bullets in 5 round clips and 8 round clips in bandoleers as well as .30 caliber bullets in 250 round belts. There are 2 copies each of the two photos (4 photos total).