{"value"=>"22 August 1994", "type"=>"inclusive", "normal"=>"1994-08-22"}
date_inclusive_start
1994
date_inclusive_end
1994
keydate
1994-08-22
date_start
1994-08-22
date_end
1994-08-22
physdesc
{"format"=>"structured", "physdesc_components"=>[{"value"=>"autograph letter signed "}, {"name"=>"extent", "value"=>"6 pages"}], "supress_display"=>true}