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    [entityType] => ITEM
    [entity] => Array
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            [contextId] => aims
            [description] => Array
                (
                    [0] => The single volume in this series provides an index to bench marks in the North and South Auckland Land Districts. The index is arranged in order of the two-letter classification code assigned to each bench mark. Information provided in the index includes bench mark identifier (two-letter code and number, beginning again at 1 for each 2-letter code); surveyor (only rarely entered), locality (usually only very approximate: e.g. "Kaukapakapa to Wellsford"); Date of issue; D3/102 folio (this refers to a survey and land development technical file - see series 1178), and remarks (usually, an SO plan number is given here). There is an alphabetically tabbed index at the front of the Index book, though this has mostly been used to record pages on which each of the letter codes appear. It has also been used to indicate where additions, exceptions and other notes are recorded.
                )

            [id] => 27236
            [idSort] => 27236
            [name] => Bench Mark Index book - North and South Auckland Land Districts
            [custom] => Array
                (
                    [custom5] => Hard-covered volume with a tabbed index at the front. Each page has been ruled in ink into headed columns.
                )

            [identifier] => Array
                (
                    [priref] => Array
                        (
                            [0] => 33296
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                )

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                    [normalizedValue] => 1967-01-01T00:00:00.0Z
                    [dateQualifier] => Array
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                            [0] => approximate
                            [1] => yearOnly
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                    [normalizedValue] => 1982-01-01T00:00:00.0Z
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                            [0] => approximate
                            [1] => yearOnly
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                            [name] => Volumes
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            [history] => 

	The following information isgiven in a sheet tucked inside the front cover of the Bench Mark Index Book:

	Bench Marks

	Background

	A Bench Mark is a type of survey or engineering monument established primarily as a basis for origins of heights or levels. The surveyor on completion of his Precise Level traverse forwards to Head Office Computing Branch the information stipulated in Technical Circular 196. Final heights are adjusted in Head Office and recorded on N88 cards which are returned to District Offices for recording.

	General

	The various sources for location and numbering of Bench Marks are as follows:

	

		Geodetic Levelling Bench Mark Lists
	

		Bench Mark Index Book
	

		Bench Mark Index (NZMS 177 Sheets)
	

		Bench Mark Cards (N88 (see series 27235) and NZMS 2 Index)
	

		Cadastral Record Sheets
	

		Survey Plans


	All these are under care of Safe Custodian

	Stage 1 Action

	On receipt of N88 cards from Head Office

	

		Note Bench Mark Index Book
	

		Plot marks onto NZMS 177 Sheets
	

		Plot marks onto Cadastral Record Sheets


	Eventually the surveyor fixes the Bench Marks in relation to existing Cadastral surveys and records the fixing on Survey Office plans. Copies of these plans are forwarded to Head Office after approval (by Section Draughtsman Statutory & Computing). N88 cards are then revised and returned to District Office.

	Stage 2 Action

	

		Record SO Plan on Cadastral Record Sheets and cross-reference in Bench Mark Index Book and on existing N88 card. When revised N88 cards are returned from Head Office file in appropriate position and destroy existing card.


	Additional information in the front of the volume relates to Bench Mark numbering (Initial letters allotted to the whole of the Auckland Land District were originally A, B, C and D. When the two districts separated, North Auckland was allotted C and D while South Auckland was allotted A and B. The second letter in the two-letter combination can be anything except I or O. Numbers are issued by District Offices, and issued in the order in which Bench Marks are established, wherever they are located. Therefore, if a Bench Mark is destroyed the replacement is likely to belong to a different letter series.
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            [isAssociatedWithPlace] => Array
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                    [0] => Array
                        (
                            [name] => Auckland repository
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            [itemType] => Series
            [rdfType] => recordSet
            [recordIsMissing] => 
            [ricClassificationDescription] => Alphabetical by two-letter code of bench marks
            [seriesRestrictionReason] => 

	No restrictions
            [setSpec] => series
        )

)