The Bureau of Industrial Service for CBS Television. The Bureau, a division of ad agency Young & Rubicam, was widely used by those in the television industry in the 1950s and 1960s for distributing publicity material.
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.