- unitid
-
{"value"=>"436723", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1923-1970", "type"=>"inclusive", "normal"=>"1923/1970"}
{"value"=>"n.d.", "type"=>"inclusive"}
- unittitle
-
{"value"=>"Y-Z, Various published songs"}
- container
-
{"type"=>"box", "value"=>"72"}
{"type"=>"folder", "value"=>"11"}
- date_start
-
1923
- keydate
-
1923
- date_end
-
1970
- date_inclusive_start
-
1923
- date_inclusive_end
-
1970