A confirmatory card is made by a method in which an offset printing block is used to print data 18 and other information 19 on to a PVC film 17, which may also carry indicia produced by printing or perforation or other means. The film 17 is enclosed between two other PVC films 20 and 21, of which at least one may be equipped with a magnetic strip bearing coded data, and the three films 17, 20, and 21 are inseparably joined together by heat and pressure. IMAGE
展开▼