| http://www.w3.org/ns/prov#value | - a thin film of a plastic material between said matrix and its its opposite surfaces a decoration which at one surface is a counterpart of said matrix and at the other surface is identical with said matrix, said material being permeable to luminous rays 7 whereby light upon encountering the selectively oriented reliefs and depressions of said regions will effect display of said decoration. 3.
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