This pole appears to be not too old when this photo was taken (please refer to [id=646957030] for an overall view of it). The metal pins were a New England Power Service standard commencing around the later 1920s as well as pole tags with the company's initials nailed to the ends of their crossarms. The glass insulators are without doubt older than this installation. A lot of electric utilities here in the Boston area were exclusively using porcelain pintypes by that time. The glass ones you see likely were used over. Numerous CD 138.2 and 157.5 Standard Glass Insulator Co. examples were seen in service along residential streets like this one in the 1980s, so some pretty old insulators were kept in the air.