- unitid
-
{"value"=>"3336547", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1937-1939", "type"=>"inclusive", "normal"=>"1937/1939"}
{"value"=>"1949", "type"=>"inclusive", "normal"=>"1949"}
- unittitle
-
{"value"=>"Fonit (Milan)"}
- container
-
{"type"=>"box", "value"=>"293"}
{"type"=>"folder", "value"=>"13-14"}
- date_start
-
1937
- keydate
-
1937
- date_end
-
1949
- date_inclusive_start
-
1937
- date_inclusive_end
-
1949