| 摘要 |
A tamper-proof and/or tamper-evident bag or envelope is provided for transporting of credit cards or debit cards which have raised identifying characters. The bag or envelope includes a tamper strip, a front panel, and a back panel drawing together at the lateral edges of the panels. In use the card is inserted into the bag or envelope with its characters disposed behind the tamper strip and covered by the tamper strip. The inside of the rear panel is then sealed to the outside of the front panel by an improved closure system which utilizes improved folding means and an adhesive strip. The tamper strip may be a thick panel such as a sheet of semi-rigid foam or thickened plastic material to prevent transfer of an impression of the raised characters through a mailing envelope and/or may transmit a warning impression in response to an attempted transfer.
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