Chronograph

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The chronograph is used to register time.

Keywords

chronograph, surveying tool, geodetic survey, tachymeter, transit instrument

Galleries

Miscellaneous Tools

Source

Coast and Geodetic Survey: July 1, 1899, to June 30, 1900 (Washington, DC: United States Government Printing Office, 1901)

Downloads

TIFF (full resolution)

2400×1668, 1.5 MiB

Large GIF

1024×711, 198.1 KiB

Medium GIF

640×444, 83.7 KiB

Small GIF

320×222, 23.5 KiB