- unitdate
-
{"value"=>"1978 - 1982", "type"=>"inclusive", "normal"=>"1978/1982"}
{"value"=>"undated", "type"=>"inclusive"}
- date_inclusive_start
-
1978
- date_inclusive_end
-
1982
- unittitle
-
{"value"=>"Libretto, other texts about the opera"}
- container
-
{"type"=>"box", "value"=>"67"}
{"type"=>"folder", "value"=>"8"}
- unitid
-
{"type"=>"local_mss", "value"=>"878173"}
- date_start
-
1978
- date_end
-
1982
- keydate
-
1978