{"value"=>"12 March 1916", "type"=>"inclusive", "normal"=>"1916-03-12"}
date_inclusive_start
1916
date_inclusive_end
1916
keydate
1916-03-12
date_start
1916-03-12
date_end
1916-03-12
physdesc
{"format"=>"structured", "physdesc_components"=>[{"value"=>"autograph letter signed "}, {"name"=>"extent", "value"=>"1 page"}], "supress_display"=>true}