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pl23_theb1840.jpg

Leveling upper mark with accuracy only to cms

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb1840jpg

Description

Leveling upper mark with accuracy only to cms.Special training mission of Joseph Lushene

Credit

C&GS; Special Report Lushene 1946

Display Date

1946

Location

Brazil

Keywords

Geodesy

Leveling