OPA stands for Office of Price Administration
Rationing was first started in 1942. Items that were rationed include canned goods, meats, sugar, coffee, tires, gas and more.
The Office of Price Administration used OPA stamps, coins and chits for rationing.
OPA coins (commonly called OPAs) were used for change for food.
OPAs were used by retailers to give change back for food bought with ration stamps.
Blue tokens were used for processed foods; red tokens for meats and fats.
OPAs were first issued in 1944
Stopped being issued in 1945