File:Photomicrograph of annealed and quenched steel, from 1911 Britannica plates 11 and 14.jpg
No higher resolution available.
Photomicrograph_of_annealed_and_quenched_steel,_from_1911_Britannica_plates_11_and_14.jpg (284 × 274 pixels, file size: 27 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Photomicrographs of steel. The top photo shows annealed steel, while the bottom shows quenched steel. |
| Date | |
| Source |
= Encyclopædia Britannica Eleventh Edition Vol. 1, Plate between pp. 704 and 705, Fig. 14. Files retrieved from Wikipedia, here and here then combined into a split-picture. Photos are pre-1911 |
| Author | Osmond and Cartaud. |
Licensing
 |
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.
|
 |
 |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:53, 3 January 2013 | | 284 × 274 (27 KB) | Zaereth~commonswiki | User created page with UploadWizard |
File usage
The following 2 pages use this file:
Global file usage
The following other wikis use this file:
