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Storage batteries and control system at Substation #1 annex.
Storage batteries and control system at Substation #1 annex.
DC rectifier and old transformer.
DC rectifier and old transformer.
Basement of Substation #20.
Basement of Substation #20.
Six hundred volt DC for trolleys.
Six hundred volt DC for trolleys.
Electric meter testing control panel.
Electric meter testing control panel.
Trench for residential underground electric distribution.
Trench for residential underground electric distribution.
Five men on a horse-drawn flatbed cart.
Five men on a horse-drawn flatbed cart.
Two men in front of a log cabin.
Two men in front of a log cabin.
Winter scene of men and a boy with snowshoes and skis.
Winter scene of men and a boy with snowshoes and skis.
Excavation for underground residential electric distribution.
Excavation for underground residential electric distribution.
Resultados 5421 a 5430 de 50901