all original medium-sized deep bowl or dome-shaped antique american industrial task lamp reflector or shade designed and fabricated by the benjamin electric mfg. co., chicago, ills. the deep bowl reflector is comprised of heavy gauge steel with original white reflective porcelain interior. the bowl reflector was designed for use with a factory task lamp. the unique refinished steel ring or shade fitter is original and intact. the benjamin electric manufacturing company was a chicago, illinois electrical company was founded by reuben berkley benjamin in the late 19th century with its first filed patent for an electric lamp socket in 1898. the company went on to manufacture various other electrical products. one of benjamin's most notable products was their series of non-contact fire alarm horns, introduced in the early 1920's. they were available in flush-mount, single, and double projector versions, in either red or gray. these horns were mainly used by ibm, and later simplexgrinnell up until the 1960's. in 1958, benjamin was bought out by thomas industries, inc.