{"value"=>"20 August 1909", "type"=>"inclusive", "normal"=>"1909-08-20"}
date_inclusive_start
1909
date_inclusive_end
1909
keydate
1909-08-20
date_start
1909-08-20
date_end
1909-08-20
physdesc
{"format"=>"structured", "physdesc_components"=>[{"value"=>"autograph letter signed "}, {"name"=>"extent", "value"=>"1 page"}], "supress_display"=>true}