The Bureau of Industrial Service for CBS-TV. During this era, networks, program sponsors and studios often used publicity or ad agencies to distribute publicity material. The Bureau, a division of ad agency Young & Rubicam, was widely used by the industry for this purpose.
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.