A protection cover for identity documents (Machine-translation by Google Translate, not legally binding)

摘要

A protection cover for identity documents, characterized by the fact that it consists of an overlay on each of several sheets of transparent cellophane adhered one on top of the other and the bottom on the cardboard of the document; of these sheets, the upper one will be colored with ink sensitive to the action of any bleach. (Machine-translation by Google Translate, not legally binding)