- unitdate
-
{"value"=>"1827-1844", "type"=>"inclusive", "normal"=>"1827/1844"}
- date_inclusive_start
-
1827
- date_inclusive_end
-
1844
- keydate
-
1827
- unittitle
-
{"value"=>"<span class=\"persname\">Brongniart, Alexandre, 1770-1847</span>, (mineralogist, chemist, geologist)"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"12 items"}], "supress_display"=>true}
- extent_statement
-
12 items
- unitid
-
{"type"=>"local_mss", "value"=>"956571"}
- date_start
-
1827
- date_end
-
1844