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Summary
| Description |
English: A 3-way pendant prism from a vault light, showing total internal reflection of light |
| Date | |
| Source | Ian Macky, http://glassian.org/Prism/3Way/14S/page2.html |
| Author | American 3-Way Prism Co's catalog, "3-Way Lighting Systems", ca 1915, page 2 |
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.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:54, 14 November 2017 | | 158 × 158 (3 KB) | HLHJ | =={{int:filedesc}}== {{Information |description={{en|1=A 3-way pendant prism from a vault light, showing total internal reflection of light}} |date=1915 |source=Ian Macky, http://glassian.org/Prism/3Way/14S/page2.html |author=American 3-Way Prism Co's... |
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