Since the photo has been cropped, renewal searches were done for the years 1977 and for 1978 at copyright.gov. There were no listings in artwork for CBS in 1977. Searching 1950 registration renewals for CBS found only some magazines which were owned by the network. There's no evidence of renewal for 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 (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.
{{Information |Description=Photo of actor Mark Stevens. Stevens was narrating a special program sponsored by the Wonder Bread company. |Source=[https://web.archive.org/web/20170711021919/http://i.ebayimg.com/images/g/YtQAAOSwPWRZPWhX/s-l1600.jpg front...