Description Office of Price Administration World War II ration tokens (quantity 25). OPA "coins" (commonly called OPAs) were used by retailers to give change back for food bought with ration stamps. OPAs were issued 1944 through 1945. OPA tokens are all made of vulcanized fiber (celluloid) and are 16 mm in size. The OPA produced 30 different red tokens and 24 blue ones. Red colored tokens such as these were used to purchase meats and fats. Both sides are embossed with "OPA Red 1 Point", and different letter combinations on both sides of the center "1".