Scrapbook of drawings, sketches, memoranda, and correspondence between Frank J. Sprague and his son, F. Desmond Sprague regarding automatic train control

Description data TOP

unitid

{"value"=>"1018633", "type"=>"local_mss"}

unitdate

{"value"=>"1919-1924?", "type"=>"inclusive", "certainty"=>"questionable", "normal"=>"1919/1924"}

date_inclusive_start

1919

date_inclusive_end

1924

keydate

1919

date_start

1919

date_end

1924

unittitle

{"value"=>"Scrapbook of drawings, sketches, memoranda, and correspondence between Frank J. Sprague and his son, F. Desmond Sprague regarding automatic train control"}

container

{"type"=>"box", "value"=>"48"}

Child components TOP

No child components.