original american depression era ruby red glass interior commercial building "exit" light wall sconce fabricated in part by the kopp glass co., swissvale, pa. the fixture contains a richly colored red glass shade with bold white lettering. the chrome plated steel fitter with single ceramic socket is intact with new wiring. the kopp shade is free from cracks or breaks. measures 5 1/2 x 5 1/2 x 8 inches.