I have provided a best guess on the copyright status of the works within; it seems quite unlikely to me that any of the people who created these images filed the formalities for copyright protection.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
The original description page was here. All following user names refer to en.wikipedia.
2010-05-12 13:09 Mathsci 718×543× (454377 bytes) {{Information |Description = FBI poster for members of [{Weatherman]] section of [[Students for a Democaratic Society]] |Source = http://blog.changeandexperience.com/2008/11/bill-ayers-and-bernadine-dohrn-were.html |Date = 1970 |A
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