- unitid
-
{"value"=>"map# 1409", "type"=>"local_call"}
{"value"=>"1004881", "type"=>"local_mss"}
- unitdate
-
{"value"=>"circa 1852", "type"=>"inclusive", "certainty"=>"approximate", "normal"=>"1852"}
- date_inclusive_start
-
1852
- date_inclusive_end
-
1852
- keydate
-
1852
- date_start
-
1852
- date_end
-
1852
- unittitle
-
{"value"=>"New York & Harlem RR"}
- scopecontent
-
{"value"=>"<p>First scheme of bridge over Harlem River.</p>"}
- container
-
{"type"=>"box", "value"=>"391"}