- unitdate
-
{"value"=>"1925 Summer", "type"=>"inclusive", "normal"=>"1925-06-21/1925-09-23"}
- unittitle
-
{"value"=>"[Observations and ideas] Holograph notebook. In Russian"}
- physdesc
-
{"value"=>"ms. and typescripts", "format"=>"simple"}
{"format"=>"structured", "physdesc_components"=>[{"value"=>"1 item", "name"=>"extent"}], "supress_display"=>true}
- container
-
{"value"=>"Manuscript box 1 (RESTRICTED)"}
- date_inclusive_start
-
1925
- date_inclusive_end
-
1925
- keydate
-
1925-06-21
- extent_statement
-
1 item
- unitid
-
{"type"=>"local_mss", "value"=>"547549"}
- date_start
-
1925-06-21
- date_end
-
1925-09-23