original and functional american vintage industrial bench or desk optical illuminating device or lamp designed and fabricated by the spencer lens company, buffalo, ny. the refinished freestanding lamp is comprised of steel, iron and brass with a bare metal finish sealed with a clear coat lacquer. the original cord with intact in-line on/off switch is in good overall condition, considering age. the detachable metal housing the contains the socket is attached to the underside of the pressed steel body containing the glass lens with yellow brass bezel. the optical light source is fully adjustable and is mounted against a a solid steel post or rod. the unusually-shaped cast iron ring base containing the original manufacturers plaque supports the lamp fixture.