http://en.wikipedia.org/wiki/Horse-drawn_vehicle http://www.coyaltix.com/lamps.htmlThe candle light needed to be protected from the wind. This removeable light or lantern has 4 sides with 2 oblong bevelled glass panals, 3rd panel is plain with a heat vent and the 4th opens to light the lamp and has a 4.5 cm round red glass which would act as a reflector. The candle holder screws out to allow for a narrow candle to be inserted. It has a black ventilated cover on top and has slide fixture to attached the lamp on to the carriage. . Powerhouse Museum Collection Thesaurus Protected lamps or lanterns, fixed or removable, used on coaches or carriages. Commonly made of brass, they often were fitted with reflectors as well as red lenses to serve as tail lights (Art and Architecture Thesaurus).red and clear glass lenses light candle reflector bevelled glass horse buggy tail light