Duquesne Light street lights
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General Electric M-250R1 175 watt mercury vapor69 viewschapman84
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General Electric M-250R 175 watt mercury vapor75 viewschapman84
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General Electric M-250R 175 watt mercury vapor237 viewschapman84
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General Electric M-250R 175 watt mercury vapor111 viewschapman84
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General Electric M-400 400 watt mercury vapor59 viewschapman84
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Cooper Lighting OVZ 175 watt mercury vapor77 viewschapman84
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