Abstract: A multi-layered corrosion-resistant label comprising a printed layer of a first corrosion-sensitive material, a transparent second layer of a second material different from the printed layer covering the front surface of the printed layer, and being of a shape similar to that of the first layer in plan view and of a second size greater than the first size, a third layer of a material different from the printed layer covering the back surface of the printed layer and being of a shape similar to that of the first shape and of a size greater than the first size, with the second and third layers enveloping the printed layer and providing a protective border surrounding the printed layer so that the peripheral edge of the printed layer is spaced inwardly from the peripheral edges of the second and third layers.