The barcode is printed on the postcard in the sorting facilities after the recipient’s address has been read. If the mail got lost on its way to the sorting fa

The barcode is printed on the postcard in the sorting facilities after the recipient’s address has been read. If the mail got lost on its way to the sorting facility, it was probably never stamped and therefore just had to be thrown into a mailbox again. The barcode would have been printed this year when the postcard was processed in the sorting facility.