- unitid
-
{"value"=>"3045044", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1870-1891", "type"=>"inclusive", "normal"=>"1870/1891"}
{"value"=>"1930", "type"=>"inclusive", "normal"=>"1930"}
- unittitle
-
{"value"=>"Family letters"}
- container
-
{"type"=>"box", "value"=>"2"}
{"type"=>"folder", "value"=>"20"}
- date_start
-
1870
- keydate
-
1870
- date_end
-
1930
- date_inclusive_start
-
1870
- date_inclusive_end
-
1930