- unitid
-
{"value"=>"539222", "type"=>"local_mss"}
- unitdate
-
{"value"=>"ca. 1948", "type"=>"inclusive", "normal"=>"1948", "certainty"=>"approximate"}
- unittitle
-
{"value"=>"Invisible Bridges : <genreform>typescript</genreform>"}
- origination
-
{"value"=>"Sarton, May.", "type"=>"persname", "role"=>"creator"}
- container
-
{"type"=>"box", "value"=>"64"}
{"type"=>"folder", "value"=>"1"}
- date_start
-
1948
- keydate
-
1948
- date_end
-
1948
- date_inclusive_start
-
1948
- date_inclusive_end
-
1948