With the discussions on power reliability, the following old advertisements may be of interest. Various players in the electric power industry used to take out full page color ads in major magazines to tout their products. Bold pictures of generators, transformers, and distribution networks. Those ads weren't cheap.
Here are some samples:
The Allis-Chalmers company made heavy equipment for distribution and engineering:
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General Electric Co also made power systems
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The Cutler-Hammer Company made controls for heavy motors:
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A local power company advertised to solicit industries to settle in its service territory:
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Even a telephone equipment supplier, the Automatic Electric Company, advertised for industrial control systems:
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