In addition a independendent, multiple-operation 120V (opposed to street series) mercury vapor street light is in the foreground. You can tell the difference on account of the small cap-looking device atop the fixture which is the photocontrol sensor for the light. On the second pole in are three angled line posts. Special mounting hardware was required for this although it has been a relatively common practice for some utilities where the conductor ties to the insulator at an angle (often used in place of dead-end suspension insulators as well and a less expensive technique too). The post mounting hardware differed but not the post-style insulators.

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