These special-application cutouts or switches complemented otherwise identical units used for fusing transformers, distribution circuits, etc. The latter very typically had brown porcelain enclosures, known by some linemen as "chocolate boxes". In order to delineate cutouts used with series street lighting circuits sometimes a differently-colored "box" was employed. These were green or white porcelain. These switches were used to control such lighting circuits. The pull-open" doors remained brown bakelite. The Line Material Co. and Kearney boxes usually were green porcelain; GE typically in white as seen in this 1948 catalog cut. Please take note that following 1965 many manufacturers switched to light gray glazes for their overhead distribution gear so that such equipment would blend with the sky; thus "sky-tone" becoming pretty much universal among electric utility equipment manufacturers.