Chicago, Illinois. Subsistence research laboratory of the U.S. Army quartermaster depot. Five-in-one ration. This ration so designed so that five servicemen starting on a mission can throw the ration in the back of a jeep and proceed with assurance that they will have three square meals. Besides the canned food showing, there are numerous other items in the large container, such as coffee, instant rice, tea, lemon juice powder, hard candy, grape juice powder, cocoa with sugar and biscuit squares