DCD2cg Card vendor   A two column machine issuing cards at two different prices and giving change.( models can be available for up to four columns). The customer inserts coins, the value of which is shown on the LED display. When the desired vend price has been reached the appropriate vend button is pressed to vend a card. If there is still credit left the customer may either press another button ,insert more coins, or press the "change" button.