{"value"=>"18 March 1924", "type"=>"inclusive", "normal"=>"1924-03-18"}
date_inclusive_start
1924
date_inclusive_end
1924
keydate
1924-03-18
date_start
1924-03-18
date_end
1924-03-18
physdesc
{"format"=>"structured", "physdesc_components"=>[{"value"=>"autograph letter signed "}, {"name"=>"extent", "value"=>"1 page"}], "supress_display"=>true}