What was an 'A Card' in World War 2?

Answer 1

Answer = = I am not familiar with the "A Card" but wonder if it is the same thing as an "A Sticker". This was a method for rationing gasoline and was a sticker put on the windshield of a car. Possibly, an A card was further identification used when purchasing gasoline. If I remember right, an A card, or sticker, entitled the owner to 4 gallons of gasoline per week. Other disignations were available for other users considered essential to the war effort.