File:Bilby towers on Transcontinental Traverse.png
Jump to navigation
Jump to search
Size of this preview: 365 × 599 pixels. Other resolutions: 146 × 240 pixels | 292 × 480 pixels | 468 × 768 pixels | 624 × 1,024 pixels | 1,484 × 2,434 pixels.
Original file (1,484 × 2,434 pixels, file size: 2.37 MB, MIME type: image/png)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]
| Description |
English: Two complete Bilby Towers on Transcontinental Geodimieter Traverse. (original image caption) |
| Date | |
| Source |
Bilby Steel Tower for Triangulation (PDF), Coast and Geodetic Survey, Publication 62-3 (1965), page 4 https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/cgs_specpubs/QB275U352no62-3.PDF |
| Author | LCDR James K. Richards, US Coast & Geodetic Survey |
Licensing
[edit]
|
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.
|
 |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:44, 11 August 2023 | | 1,484 × 2,434 (2.37 MB) | Obscure2020 (talk | contribs) | Extracted original image from PDF source, cropped, then optimized using OxiPNG and ZopfliPNG. |
| 23:31, 2 May 2018 |  | 527 × 844 (500 KB) | Bri (talk | contribs) | Cropped | |
| 23:29, 2 May 2018 |  | 705 × 981 (452 KB) | Bri (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikipedia.org
