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![Small umbrella lashed to alpenstock - shading instrument from sun theb1605.jpg Small umbrella lashed to alpenstock - shading instrument from sun](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1605.jpg?itok=QTurMbaN)
Description
Small umbrella lashed to alpenstock - shading instrument from sun.Triangulation party of William M. Scaife (Image credit: C&GS; Season's Report Scaife 1930)
Credit
C&GS; Season's Report Scaife 1930
Display Date
1929
Location
Southeast Alaska
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Observing the Angles
Keywords
Geodesy
Triangulation
Angles