Diners' Club credit card, 1955. The first
modern credit cards of the type now commonly used were paper booklets
issued by Diners' Club to be used for eating at restaurants. Each booklet
bore the credit card holders personal information, the card number, and,
inside, a list of the restaurants that accepted the card. Diners' Club
issued its first cards in 1951, and was followed by organizations such
as Esquire and Duncan Hines.