Zenith Telescope
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The zenith telescope.
Galleries
Surveying ToolsSource
Coast and Geodetic Survey: July 1, 1899, to June 30, 1900 (Washington, DC: United States Government Printing Office, 1901)
Downloads
1145×2400, 933.9 KiB
488×1024, 106.2 KiB
305×640, 45.2 KiB
152×320, 13.9 KiB