- unitdate
-
{"value"=>"1972 - 1974", "type"=>"inclusive", "normal"=>"1972/1974"}
{"value"=>"n.d.", "type"=>"inclusive"}
- date_inclusive_start
-
1972
- date_inclusive_end
-
1974
- physdesc
-
{"value"=>"synopsis of libretto drafts, ms. and typescript notes, rehearsal schedule", "format"=>"simple"}
- container
-
{"type"=>"box", "value"=>"60"}
{"type"=>"folder", "value"=>"14"}
- unitid
-
{"type"=>"local_mss", "value"=>"811546"}
- date_start
-
1972
- date_end
-
1974
- keydate
-
1972