VALUE CARD PIN SECURITY METHOD AND DEVICE

摘要

A value card comprising a substantially planar substrate with first indicia applied to a surface of the substrate is provided. An obscuring layer formed from an opaque material is disposed over the first indicia so as to prevent at least a portion of the first indicia from being viewed. The obscuring layer is configured so that the opaque material can be removed to reveal the at least a portion of the first indicia but cannot be reapplied over the first indicia. The value card further comprises a security device comprising second indicia comprising a predetermined pattern. At least a portion of the second indicia is formed on the obscuring layer so that removal of the opaque material to reveal the at least a portion of the first indicia also removes the at least a portion of the second indicia.