Methods of creating tamper resistant informational articles and related products are disclosed. In one method a metal foil has a hologram formed therein after which information is created on the metal foil at least partially over the hologram and the foil is encapsulated in a resinous plastic material....http://www.google.fr/patents/US6164548?utm_source=gb-gplus-shareBrevet US6164548 - Methods of creating a tamper resistant informational article
Methods of creating a tamper resistant informational article
