Duquesne Light street lights (removed from service)
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General Electric M-250R 175 watt mercury vapor street light14 viewschapman84
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Westinghouse OV-15 175 watt mercury vapor32 viewschapman84
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Cooper Lighting OVZ 175 watt mercury vapor27 viewschapman84
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Cooper Lighting OVZ 175 watt mercury vapor26 viewschapman84
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McGraw Edison Unistyle 175 175 watt mercury vapor26 viewschapman84
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Cooper Lighting OVZ 150 watt high pressure sodium63 viewschapman84
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70 watt high pressure sodium street lights with a 175 watt mercury vapor street light in the background in Wilkinsburg, PA58 viewschapman84
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Cooper Lighting OVZ 100 watt mercury vapor52 viewschapman84
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Line Materials Unistyle 175 175 watt mercury vapor69 viewschapman84
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McGraw Edison Unistyle 175 175 watt mercury vapor36 viewschapman84
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McGraw Edison Unistyle 175 175 watt mercury vapor93 viewschapman84
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General Electric M-250R1 70 watt high pressure sodium41 viewschapman84
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Westinghouse OV-15 Tudor 70 watt high pressure sodium43 viewschapman84
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General Electric M-250R1 100 watt high pressure sodium33 viewschapman84
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McGraw Edison Unistyle 175 175 watt mercury vapor106 viewschapman84
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Westinghouse OV-15 175 watt mercury vapor60 viewschapman84
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Line Materials Unistyle 175 175 watt mercury vapor66 viewschapman84
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Cooper Lighting OVZs 70 watt high pressure sodium and Line Materials Unistyle 175 watt mercury vapor86 viewschapman84
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Westinghouse OV-15 175 watt mercury vapor56 viewschapman84
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General Electric M-250R1 175 watt mercury vapor77 viewschapman84
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Westinghouse OV-15 175 watt mercury vapor75 viewschapman84
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Cooper Lighting OVZ 70 watt high pressure sodium91 viewschapman84
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General Electric M-250R1 175 watt mercury vapor86 viewschapman84
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General Electric M-250R 175 watt mercury vapor73 viewschapman84
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General Electric M-400 400 watt mercury vapor71 viewschapman84
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