- unitid
-
{"value"=>"1114416", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1847 April 9", "type"=>"inclusive", "normal"=>"1847-04-09"}
- unittitle
-
{"value"=>"Barnum, at Washington [D. C.], to Moses Kimball, at Boston"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"3 pages", "unit"=>"pages"}]}
- container
-
{"type"=>"box", "value"=>"1"}
- date_start
-
1847-04-09
- keydate
-
1847-04-09
- date_end
-
1847-04-09
- date_inclusive_start
-
1847
- date_inclusive_end
-
1847
- extent_statement
-
3 pages