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NTRS 3777 Level books

Recording Agency:	Lands and Survey Department [I] (623); Lands and Mines Department (621); Lands and Survey Department [II] (624); Lands and Survey Branch (622); Department of Services and Property, Northern Territory Branch (592); Department of Administrative Services, Northern Territory Office (1261); Department of Lands and Housing [I] (580)
Date Range:	1914 - 1987
Access:	Agreement Pending
Location:	Darwin (NTAC)
Legacy Series Id:	NTRS 1511_P1

Function / Content

This series consists of level books which were compiled primarily by Northern Territory surveyors to determine the height of survey marks or points with respect to the Australian Height Datum (AHD). Details of the survey measurements listed in the volumes include: instrument station; instrument height; station reduced level; reading of stadia wires, horizontal circle, vertical circle, code, remarks, horizontal distance, backsight, intermediate sight, fore sight, rise, fall, chainage, cross section. Drawings are also included in some books. Familiarity with survey techniques is necessary to make full use of these records.

Recordkeeping System

Numerical

Recording Agency

Period	Title	Agency Id
c 1914 - 1921	Lands and Survey Department [I]	623
1921 - 1925	Lands and Mines Department	621
1925 - 1931	Lands and Survey Department [II]	624
1931 - 1972	Lands and Survey Branch	622
1972 - 1975	Department of Services and Property, Northern Territory Branch	592
1975 - 1978	Department of Administrative Services, Northern Territory Office	1261
1978 - 1980	Department of Lands and Housing [I]	580

Agency Responsible

Period	Title	Agency Id
c 1914 - 1921	Lands and Survey Department [I]	623
1921 - 1925	Lands and Mines Department	621
1925 - 1931	Lands and Survey Department [II]	624
1931 - 1972	Lands and Survey Branch	622
1972 - 1975	Department of Services and Property, Northern Territory Branch	592
1975 - 1978	Department of Administrative Services, Northern Territory Office	1261
1978 - 1980	Department of Lands and Housing [I]	580
2016 - ct	Department of Infrastructure, Planning and Logistics	1296

Controlling Series

Period	Series	Series Id
1914 - 2010	Survey level book registers	NTRS 3778

Consignments

Consignment Id	Number of Units	Contents Date Range	Public Access	Description
P0001	61	1959 - 1987	Agreement Pending	D3: Instruction, D4:Surveyor/Surveyed by
P0002	21	1914 - 1972	Agreement Pending
P0003	1	1983 - 1983	Agreement Pending	D3: Surveyor