paper or card printed text a logo or symbol a bar code or QR code an expiration date a unique serial number a signature or stamp an address or contact information
coupon which has paper or card coupon which has printed text coupon which is a logo or symbol coupon which is a bar code or QR code coupon which is an expiration date coupon which is a unique serial number coupon which is a signature or stamp coupon which is an address or contact information