- unitid
-
{"value"=>"2137372", "type"=>"local_mss"}
{"value"=>"33433119196248", "type"=>"local_barcode"}
- unitdate
-
{"value"=>"1917-1920", "type"=>"inclusive", "normal"=>"1917/1920"}
- unittitle
-
{"value"=>"Petrova, Olga (1884-1977)"}
- scopecontent
-
{"value"=>"<p>Also known as Madame Olga Petrova and Madame Petrova.</p>"}
- container
-
{"type"=>"volume", "value"=>"284"}
- date_start
-
1917
- keydate
-
1917
- date_end
-
1920
- date_inclusive_start
-
1917
- date_inclusive_end
-
1920