Pigmented glass that can be used in structural applications and repurposed for a variety of projects. Carrera glass is grouped and sold under the generic name "vitrolite," its identified by its rough back. This panel is a moody cherry with a very subtle swirling detail that looks like marble painting. The panel was once part of some kind of signage and still has imprints from the lettering. The glue can be removed, but due to age the shadow around them will probably remain after cleaning.

This page has some great background and history on the material, with foucs on its use in the DC area.
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