- unitid
-
{"value"=>"2111991", "type"=>"local_mss"}
{"value"=>"33433095908012", "type"=>"local_barcode"}
- unitdate
-
{"value"=>"[1845]", "type"=>"inclusive", "normal"=>"1845", "certainty"=>"inferred"}
- unittitle
-
{"value"=>"William B. Lewis to [Lewis Cass]"}
- physdesc
-
{"format"=>"simple", "value"=>"Incomplete copy"}
- container
-
{"type"=>"volume", "value"=>"4"}
- date_start
-
1845
- keydate
-
1845
- date_end
-
1845
- date_inclusive_start
-
1845
- date_inclusive_end
-
1845