Drawing of transmission towers and 
lines descending a mountain.

Ad from Duquesne Light Company,
"To Our New Patrons"
From Five Hundred Representative Public Utility Advertisements, 1928
Public Utilities Advertising Association

The print reads:

"The consolidation of the Coraopolis municipal electric plant with the Duquesne Light Company system marks the beginning of a new era for your already prosperous borough.

"You now have the vast resources of the Duquesne Light Company to guarantee you dependable service in your homes, your streets, your factories and your commercial establishments. Your service will be connected to a huge distribution system fed by power plants that are modern and dependable"

"You now have the service of a small army of men who are prepared at all times to maintain electric lines, substations and other electric equipment so they may function properly.

"You now have available other services such as advice on electric wiring and electric lighting of all kinds. Information is available on the use of all electrical appliances for all purposes.

"We welcome the opportunity to serve the residents of Coraopolis and extend immediately our entire service facilities.

"In an emergency such as the failure of a fuse, a loose electric wire or a dangerous radio aerial call Coraopolis 118. Our prompt response will please you."

     This ad emphasizes what we today would call "value-added services," like availability of information on electrical products. Also note that the company name still shows the early tie between electric lighting and power suppliers. Demand for electricity to illuminate lamps served as the foundation for many utilities, though by the 1930s this relation had weakened.