File:Chengqiao artifact no. 35 cast iron.png
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Chengqiao_artifact_no._35_cast_iron.png (103 × 114 pixels, file size: 18 KB, MIME type: image/png)
Summary
| Media data and Non-free use rationale | |
|---|---|
| Description | The photograph depicts one of the earliest cast iron objects, a lump of cast iron (artifact no. 35) found in Grave no. 1 at Chengqiao, excavated in 1964 at Jiangsu, China. |
| Author or copyright owner |
Wang Zunguo |
| Source (WP:NFCC#4) | Excavation reports Wang Zunguo et al.; Iron and Steel in Ancient China |
| Date of publication | 1965 |
| Use in article (WP:NFCC#7) | Cast iron |
| Purpose of use in article (WP:NFCC#8) | To support encyclopedic discussion of this work in this article. The illustration is specifically needed to support the following point(s): This photograph illustrates the early history of cast iron. |
| Not replaceable with free media because (WP:NFCC#1) |
The only available photographs of this artifact are copyrighted. |
| Minimal use (WP:NFCC#3) | This image will only be used in the cast iron article and nowhere else. |
| Respect for commercial opportunities (WP:NFCC#2) |
This image is of a low resolution, and its use will be minimal. |
Licensing
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Fair use for Cast iron
- Though this image is subject to copyright, its use is covered by the U.S. fair use laws because:
- It is a historically significant photo of a famous artifact.
- It is of much lower resolution than the original (copies made from it will be of very inferior quality).
- The photo is only being used for informational purposes.
- Its inclusion in the article adds significantly to the article because the photo and its historical significance are the object of discussion in the article.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:31, 15 June 2021 | | 103 × 114 (18 KB) | Thales (talk | contribs) |
- You cannot overwrite this file.
File usage
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