Arnold (1913) pg 234 - Perspective sketch of Eureka Valley.jpg
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Summary
| Description |
English: Figure 54 - Perspective sketch of Eureka Valley. Showing Market Street extension and relative position of Eureka Valley station and Mission-Sunset tunnel. Also indicating the impossibility of extending Market Street straight across Eureka Valley if an outlet is desired. This secures easy grade for both tunnel and street. |
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| Date | ||||
| Source | Arnold, Bion J. (March 1913) "11. Market Street extension tunnel under Twin Peaks" in Report on the Improvement and Development of the Transportation Facilities of San Francisco, pp. 225–270 Retrieved on 17 April 2018. | |||
| Author | Uncredited illustrator(s), drafter(s), and photographer(s). First published by and generally credited to Bion Arnold | |||
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_pg_234_-_Perspective_sketch_of_Eureka_Valley_(cropped).jpg)
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Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1930.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 14:37, 27 July 2018 | | 1,316 × 2,196 (408 KB) | wikimediacommons>Mliu92 | User created page with UploadWizard |
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