King Crimson in a 1974 press photo. The lineup depicted lasted from 1972 to 1974. The photo was distributed by Atlantic Records, which was King Crimson's record label in the US. No copyright markings on the photo.
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.