- unitid
-
{"value"=>"3186657", "type"=>"local_mss"}
{"value"=>"323696", "type"=>"local_mss_av"}
- unitdate
-
{"value"=>"1973 March 28", "type"=>"inclusive", "normal"=>"1973-03-28"}
- unittitle
-
{"value"=>"Briggs, Jeffrey [3 and 4]"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"1 audio recording", "unit"=>"audio_recordings"}]}
- date_start
-
1973-03-28
- keydate
-
1973-03-28
- date_end
-
1973-03-28
- date_inclusive_start
-
1973
- date_inclusive_end
-
1973