| 摘要 |
A method of preparing documents for the transmission of secure information, such as a PIN (personal identification number) or password, comprises the steps of preparing a first laminar element 13 with a peripheral region 15 separable from a central region 14 printing the secure information on the central region 14 of the first laminar element 13 or on a central region 19 of a second laminar element 12, positioning the two laminar elements 12 and 13 in face-to-face relation, with the face of the element bearing the information facing the other element, and securing the elements together at their peripheries so that the confidential information is covered. Non-secure information printed on laminar element 13, such as an address, may be made visible by the inclusion of a window 22 in laminar element 12. |
