Rather primitive line construction here... Note the lower crossarm on the pole in the foreground was for a two-wire customer service, positioned to direct the wires to the residence. A pair of "hook" type pintype insulators are also seen mounted onto this dwelling for its 120-volt, two-wire electric service. In many early c.1900 electric lighting service installations such two-wire services were attached to the customer as in the photo with the recording meter in the attic. From there, fuses were connected to the owner's electric wiring.

Strict electricity codes implemented around 1910 soon made this method of customer wiring obsolete with safer service entrances and improved protective equipment, typically with entry into the basements of new and upgraded customer installs.

Of additional note, most likely one of the other arms supported elec. lighting service wires along with another two-wire circuit for street lighting, evident by the gooseneck street light mounted on one of the poles in the background.