Dating for professionals with credit cards
A credit card is a payment card issued to users (cardholders) to enable the cardholder to pay a merchant for goods and services based on the cardholder's promise to the card issuer to pay them for the amounts plus the other agreed charges.
The card issuer (usually a bank) creates a revolving account and grants a line of credit to the cardholder, from which the cardholder can borrow money for payment to a merchant or as a cash advance.
Charga-Plates were issued by large-scale merchants to their regular customers, much like department store credit cards of today.
Credit card numbers were originally embossed to allow easy transfer of the number to charge slips.
With the decline of paper slips, some credit cards are no longer embossed and in fact the card number is no longer in the front.
Charge coins and other similar items were used from the late 19th century to the 1930s.
They came in various shapes and sizes; with materials made out of celluloid (an early type of plastic), copper, aluminum, steel, and other types of whitish metals.
Beginning in the 1930s, merchants started to move from charge coins to the newer Charga-Plate. It was a 2½" × 1¼" rectangle of sheet metal related to Addressograph and military dog tag systems.