Image:San Francisco City Hall 1906-04-20.jpg
维基百科，自由的百科全书
San Francisco, California, Earthquake April 18, 1906. City Hall. April 20, 1906.
- Original file
- 840KB JPEG file
- Modifications
- perspective correction, denoising, sharpening
- Source
- USGS Earth Science Photographic Archive, Mendenhall, W.C. 707, digital file mwc00707.
- Rights and restrictions
- "The photographs are not copyrighted and may be viewed and downloaded free of charge."[1]
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This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy |
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