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![Observing tower built of native timber in the Philippine Islands cgs02444.jpg Observing tower built of native timber in the Philippine Islands](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs02444.jpg?itok=Slt-ej7z)
Description
Observing tower built of native timber in the Philippine Islands. A treetrunk is used as the inner instrument supportin tower while the outer towerwill support the observer and recorder. (Image credit: Collection of NOAA/NOS/National Geodetic Survey William H. Burger Album)
Credit
Collection of NOAA/NOS/National Geodetic Survey William H. Burger Album
Location
Philippine Islands
Collection
Historic Coast & Geodetic Survey
Keywords
Coast and Geodetic Survey