- unitid
-
{"value"=>"982308", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1719-1720", "type"=>"inclusive", "normal"=>"1719/1720"}
- date_inclusive_start
-
1719
- date_inclusive_end
-
1720
- keydate
-
1719
- date_start
-
1719
- date_end
-
1720
- unittitle
-
{"value"=>"Letters and Papers of Count Hoym, and concerning Poland"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"3 volumes"}], "supress_display"=>true}
- container
-
{"type"=>"volume", "value"=>"43-45"}
- extent_statement
-
3 volumes