File:Casing for the first Soviet atomic bomb, RDS-1.jpg

Photograph of a casing for the first Soviet atomic bomb, RDS-1, detonated in August 1949. The cartoonish "eyes" on the bomb are radar fuses.

This particular photograph is taken from this page, where it is indicated that it is copyright the Minatom Archive. Most likely this means it is considered to be under active copyright protection, especially in Russia. Its use on Wikipedia is under the fair use claim of U.S. copyright law, which it should satisfy especially because:

1. It is not an essentially "creative" photograph, and it is one for which a free alternative would be especially hard to find (the museum is off-limits to the public)
2. It is being used in an encyclopedic and analytical context on Wikipedia, as it in particular can be easily juxtaposed to the Fat Man weapon
3. Its usage on Wikipedia will not deny any revenue to the Minatom Archive, if there is any revenue they would normally derive from such things.

This work is copyrighted (or assumed to be copyrighted) and unlicensed. It does not fall into one of the blanket acceptable non-free content categories listed at Wikipedia:Non-free content § Images or Wikipedia:Non-free content § Audio clips, and it is not covered by a more specific non-free content license listed at Category:Wikipedia non-free file copyright templates. However, it is believed that the use of this work: To illustrate the subject in question Where no free equivalent is available or could be created that would adequately give the same information On the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation, qualifies as fair use under United States copyright law. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content and Wikipedia:Copyrights. Fair use //en.wikipedia.org/wiki/File:Casing_for_the_first_Soviet_atomic_bomb,_RDS-1.jpg true