- unitid
-
{"value"=>"558317", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1811", "type"=>"inclusive", "normal"=>"1811"}
- unittitle
-
{"value"=>"Invention in Mechanics"}
- physdesc
-
{"format"=>"simple", "value"=>"16 pages, draft"}
- container
-
{"type"=>"box", "value"=>"1"}
{"type"=>"folder", "value"=>"40"}
- date_start
-
1811
- keydate
-
1811
- date_end
-
1811
- date_inclusive_start
-
1811
- date_inclusive_end
-
1811