Circa : 1950

“The Central Illinois Public Service Company was an electric streetcar holding company and power utility first organized in 1902. Under its later quarter billion dollar holding company, CIPSCO Inc. (formerly NYSECIP), it merged in 1997 with the larger neighboring Union Electric Company of Missouri (formerly NYSEUEP) to form Ameren Corporation (NYSEAEE) based in St. Louis, Missouri.[1] Now a subsidiary, AmerenCIPS is headquartered in Springfield, Illinois”– Wikipedia

Central Illinois Power Service with their ready kilowatt logo- Still in business