Mysterious Lights Of The North

push buttons on old light switch in washington DC

push buttons on old light switch in washington DCToday’s Photo Of The Week is a bit of a mystery, and we’re looking for help. Can you explain what this switch was designed to operate? Just the ceiling light (which would be, kind of, north of the person operating the switch)? Or does “N” stand for “no,” i.e., “off?” But if so, what’s with the NE?

Or was it part of the “heating plant?” Or perhaps it connected phone calls to different parts of the house? Or was it connected to a buzzer that summoned the maid?

We found the plate in the upper hall of a 1920s colonial in North Cleveland Park, and it appears to be original to the house that was built from plans by the DC-based Standard Homes Company. The writing that circles the “N” on the buttons on the left spells, “HART & HEGEMAN MFG CO.”

Any ideas?