four original early 20th century american vintage industrial interior store window display reflectors with original green enameled finish largely intact. the fluted shades are treated with a reflecting element (i.e., silver nitrate) sandwiched or encased within the glass. 300-500 watt bulbs were likely used to produce an angled "flood of light." the metallic copper enameled undercoat finish is partially exposed in varying degrees from one shade to the next. fabricated by the pittsburgh reflector & illuminating co., pittsburgh, pa. priced for the lot of four. each shade measures 7 1/2 x 5 1/4 inches. a total of twelve matching shades are available.