- unitid
-
{"value"=>"3332366", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1837 October 28-1840 June 13", "type"=>"inclusive", "normal"=>"1837-10-28/1840-06-13"}
- unittitle
-
{"value"=>"<span class=\"title\">Niles' National Register</span>, Baltimore"}
- scopecontent
-
{"value"=>"<p>Includes the following issues: October 28, 1837; December 30, 1837; March 17, 1838; August 18, 1838; December 22, 1838; November 9, 1839; and June 13, 1840.</p>"}
- container
-
{"type"=>"box", "value"=>"14"}
- date_start
-
1837-10-28
- keydate
-
1837-10-28
- date_end
-
1840-06-13
- date_inclusive_start
-
1837
- date_inclusive_end
-
1840