A ration stamp, ration coupon or ration card is a stamp or card issued by a government to allow the holder to obtain food or other commodities that are in short supply during wartime or in other emergency situations when rationing is in force. Ration stamps were widely used during World War II by both sides after hostilities caused interruption to the normal supply of goods. They were also used after the end of the war while the economies of the belligerents gradually returned to normal. Ration stamps were also used to help maintain the amount of food one could hold at a time. This was so that one person would not have more food than another.