File:Twin Peaks Tunnel (double tube flat top section, east end)2.svg
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Summary
| Description |
English: Cross-section view of the Twin Peaks Tunnel, eastern end. Redrawn from plans published in 1916. Scale 10px = 1" |
| Date | |
| Source | Own work, redrawn from Glick, L. (21 June 1916). "Method and Progress of Construction of the Twin Peaks Tunnel In San Francisco, Cal.". Building and Engineering News 16 (24): 5–13. Retrieved on 24 July 2018. |
| Author | Mliu92 |
| Other versions |
This file was derived from: B&EN v16 no 24 fig03 pg06 (1916-06-24) Double Tube - Flat Top Section.jpg: _Double_Tube_-_Flat_Top_Section.jpg) |
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:40, 25 July 2018 | | 3,900 × 2,440 (959 bytes) | Mliu92 | User created page with UploadWizard |
File usage
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