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Dictionary of Sydney

The Dictionary of Sydney
Roles
Type
Scientific instrument

The Dictionary of Sydney was archived in 2021.

Scientific instrument

Type - Scientific instrument

Datum Bench Mark Plug

St Ives trig station

Survey Baseline Standard

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Scientific instrument

Datum Bench Mark Plug

Marker which provides the origin of all height levels in New South Wales.

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St Ives trig station

Surveyor's reference point from the 1880s on the western side of Mona Vale Road St Ives

full record »

Survey Baseline Standard

Stainless steel rods that are set in bedrock in the marble flooring in a corridor in the Lands Department building which verifies surveyor's bands to an accuracy of 0.01 millimetres at 20 metres.

full record »