- unitid
-
{"value"=>"453992", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1956-1962", "type"=>"inclusive", "normal"=>"1956/1962"}
{"value"=>"1974", "type"=>"inclusive", "normal"=>"1974"}
- unittitle
-
{"value"=>"Railroad Line"}
- container
-
{"type"=>"box", "value"=>"86"}
{"type"=>"folder", "value"=>"5-6"}
- date_start
-
1956
- keydate
-
1956
- date_end
-
1974
- date_inclusive_start
-
1956
- date_inclusive_end
-
1974