Zenith Telescope
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The zenith telescope used in surveying.
Galleries
Surveying ToolsSource
Coast and Geodetic Survey: July 1, 1899, to June 30, 1900 (Washington, DC: United States Government Printing Office, 1901)
Downloads
1270×2400, 1.2 MiB
541×1024, 152.9 KiB
338×640, 62.1 KiB
169×320, 16.6 KiB