- unitid
-
{"value"=>"2023449", "type"=>"local_mss"}
{"value"=>"33433112412121", "type"=>"local_barcode"}
- unitdate
-
{"value"=>"1840 March 7", "type"=>"inclusive", "normal"=>"1840-03-07"}
- unittitle
-
{"value"=>"Letter from William C. Preston to Dolley Madison"}
- physdesc
-
{"format"=>"simple", "value"=>"3 pages"}
- container
-
{"type"=>"box", "value"=>"4"}
{"type"=>"folder", "value"=>"25"}
- date_start
-
1840-03-07
- keydate
-
1840-03-07
- date_end
-
1840-03-07
- date_inclusive_start
-
1840
- date_inclusive_end
-
1840