Here is a close up of the insulators on the alley arm. The back right is a CD 164 Diamond (SB) in peach. The front right is a CD 164 Dominion-614 (RDP) in ice green. The two in the middle are either Hemingray or Brookfield CD 164's. The one on the left is a CD 164 Dominion-614 (RDP) in light green. There seem to be a lot of these CD 164 Diamond's around this area including some in purple.