{"value"=>"13 March 1931", "type"=>"inclusive", "normal"=>"1931-03-13"}
date_inclusive_start
1931
date_inclusive_end
1931
keydate
1931-03-13
date_start
1931-03-13
date_end
1931-03-13
physdesc
{"format"=>"structured", "physdesc_components"=>[{"value"=>"autograph letter signed "}, {"name"=>"extent", "value"=>"1 page"}], "supress_display"=>true}