File:Power required on different grades.jpg
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| Description | 1913 picture by the Seattle Engineering Department promoting regrading (see w:Regrading in Seattle). It illustrates the power needed to pull a load up different grades (and the resulting cost), illustrated by the number of horses pulling a cart. |
| Date | |
| Source | Originally from a 1913 document in the Seattle Municipal Archives: Photograph collection, item 82. Reprinted on p. 209 of Matthew Klingle, "Changing Spaces: Nature, Property, and Power in Seattle, 1880–1945" in Journal of Urban History; 32; 197. DOI 10.1177/0096144205281613. |
| Author | Seattle Engineering Department |
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:13, 10 December 2007 | | 692 × 389 (49 KB) | Jmabel (talk | contribs) | ==Summary== {{Information |Description=1913 picture by the Seattle Engineering Department promoting regrading (see w:Regrading in Seattle). It illustrates the power needed to pull a load up different grades (and the resulting cost), illustrated by th |
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