Collection of drawings of story authors from Unknown Worlds comics, published by the American Comics Group 1960-1967. Most Unknown Worlds stories were written by Richard E. Hughes, so most names and pictures were fictitious.
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 (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.