These could have been linemen from the fire signal department owing to the white painted crossarm one of the workers is adjacent to. On top also appear to be fire alarm wires and on white crossarms. Perhaps this crew was in the process of relocating the upper circuits to lower on the pole. By the teens general practice was to string fire alarm wires mid-way up utility poles and no longer on top. Electric lighting service lines are seen upon the three longer crossarms near the top. Click "Next" for a close look at the top of this pole.