Datum Bench Mark Plug Scientific instrument Marker which provides the origin of all height levels in New South Wales. Milestone Constructed 1887 - 1894 {"name":"Constructed","target":"","target_text":null,"date":{"#markup":"<span class='date'>1887<\/span><span class='separator'> - <\/span><span class='date'>1894<\/span>"},"date_start":"1887","date_end":"1894"} Property Part of Lands Department building {"name":"Part of","target":"Lands Department building","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} Type Scientific instrument {"name":"Scientific instrument","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}
