two original repurposed machine age spun aluminum lightweight interior factory public announcement loudspeaker pendant lights salvaged from the old grand specialties factory (non-extant), chicago, il. the matching horn speakers were originally used in the factory's public address system. several speakers were mounted throughout the factory complex with the use of threaded pipe and flange. each speaker's transducer or driver has been replaced with a single keyless incandescent light bulb socket and wire. the exterior surfaces have been brushed down to bare metal and sealed with a clear coat lacquer. priced for the pair. each speaker measures approximately 35 inches fully extended with a 14 inch diameter.