Articles and addresses by Sprague on electric motors, electric railways, urban rapid transit, London underground, and miscellaneous clippings on electric railways

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{"value"=>"1018774", "type"=>"local_mss"}

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{"value"=>"1885-1905", "type"=>"inclusive", "normal"=>"1885/1905"}

date_inclusive_start

1885

date_inclusive_end

1905

keydate

1885

date_start

1885

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1905

unittitle

{"value"=>"Articles and addresses by Sprague on electric motors, electric railways, urban rapid transit, London underground, and miscellaneous clippings on electric railways"}

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{"type"=>"box", "value"=>"117"}

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