The quick and easy option! Standard National Register Plaques include the recommended National Register of Historic Places wording. They are available in cast solid bronze, cast solid aluminum and colored cast resin. They include mounting screws and a Lifetime Guarantee! All Standard National Register Plaques have a Double Line border and Leatherette background. Solid Bronze and Bronze Colored Resin plaques have a Brown background while Solid Aluminum and Aluminum Colored Resin plaques have a Black background.