- unitid
-
{"value"=>"3145387", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1957", "type"=>"inclusive", "normal"=>"1957"}
{"value"=>"1960", "type"=>"inclusive", "normal"=>"1960"}
{"value"=>"undated", "type"=>"inclusive"}
- unittitle
-
{"value"=>"Metropolitan Opera House, New York City"}
- scopecontent
-
{"value"=>"<p>Includes Jan Peerce, Eleanor Steber, Lawrence Davidson, Nadine Conner, Thelma Votipka, Paul Franke, Osie Hawkins, Dorothy Kirsten, Richard Tucker, and others</p>"}
- container
-
{"type"=>"box", "value"=>"9"}
{"type"=>"folder", "value"=>"3"}
- date_start
-
1957
- keydate
-
1957
- date_end
-
1960
- date_inclusive_start
-
1957
- date_inclusive_end
-
1960