- unitid
-
{"value"=>"3617153", "type"=>"local_mss"}
{"value"=>"4", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1991-1996", "type"=>"inclusive", "normal"=>"1991/1996"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"247 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"1.7 megabytes", "unit"=>"megabytes"}]}
- date_start
-
1991
- keydate
-
1991
- date_end
-
1996
- date_inclusive_start
-
1991
- date_inclusive_end
-
1996