Here we enjoy seeing a phone open wire circuits along the left with electric lighting lines along the right that ran along this unpaved roadway in Vermont. Also note the early electric distribution transformer mounted upon the pole in the (right side) foreground. In addition, two insulators are mounted near the peak of the house on the right for its electric lighting service entry. Many early electric utility residential installations had attic entries like this one. Increased electricity loads and wiring standards/codes commencing in the teens soon did away with old service entrances as seen.

As a journeyman meterman I have seen only one attic entry like this (not this particular one). I have no idea what kind of installation was on the other side of the attic wall nor do any other ancient metermen who worked for that utility whom I work for. Accurate billing each month was accomplished via a meter mounted on the utility pole in front of the residence for decades. Thus, the line went down a meter socket on the pole out front and then the load back up with the customer's meter on the pole at eye level to the customer's attic entry (museum?).