| http://www.w3.org/ns/prov#value | - If the monochrome laser-personalisable layer 14 a is under the multi-colored laser-personalisable layer 14 and same is only covered over part of its area by the optical barrier layer 3 a, that structure allows image elements such as for example lines or alphanumeric characters which are lasered beyond the boundary of the optical barrier layer 3 a to cause carbonisation of the background.
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