{"value"=>"1912 April 18", "type"=>"inclusive", "normal"=>"1912-04-18"}
date_inclusive_start
1912
date_inclusive_end
1912
keydate
1912-04-18
date_start
1912-04-18
date_end
1912-04-18
physdesc
{"format"=>"structured", "physdesc_components"=>[{"value"=>"autograph letter signed "}, {"name"=>"extent", "value"=>"4 pages"}], "supress_display"=>true}