- unitid
-
{"value"=>"851469", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1974", "type"=>"inclusive", "normal"=>"1974"}
{"value"=>"1975", "type"=>"inclusive", "normal"=>"1975"}
- unittitle
-
{"value"=>"Published music"}
- container
-
{"type"=>"box", "value"=>"90"}
{"type"=>"folder", "value"=>"9"}
- date_start
-
1974
- keydate
-
1974
- date_end
-
1975
- date_inclusive_start
-
1974
- date_inclusive_end
-
1975